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Posted to user@mesos.apache.org by "DiGiorgio, Mr. Rinaldo S." <rd...@pace.edu> on 2016/06/03 20:11:33 UTC
OSX 10.10.5 and mesos 0.28.1 -- 10 to 20 X difference in sleep()
method compared to non mesos
Hi,
We are running the following Java application and we are getting unreasonable deltas in the actual amount time slept. On linux the results are as expected 10, 11, 12 but mostly 10ms. Can you suggest any changes we can make or is this a known issue or a new issue to be investigated? When we run the same code on the same instance of OSX 10.10.5 without mesos -- we get the expected results.
public class SleepLatency {
static final int COUNT = 100;
static final long DELAY = 10L;
public static void main(String[] args) throws Exception {
long tstart = System.currentTimeMillis();
for (int i = 0; i < COUNT; i++) {
long t0 = System.currentTimeMillis();
Thread.sleep(DELAY);
long t1 = System.currentTimeMillis();
System.out.printf("loop %3d delay %4d ms%n", i, t1 - t0);
}
long tfinish = System.currentTimeMillis();
System.out.printf("total time = %5d ms%n", tfinish - tstart);
}
}
====== OSX RESULTS are 10 to 20 times larger than LINUX Results below =====
sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar SleepLatency'
loop 0 delay 141 ms
loop 1 delay 201 ms
loop 2 delay 81 ms
loop 3 delay 14 ms
loop 4 delay 194 ms
loop 5 delay 149 ms
loop 6 delay 172 ms
loop 7 delay 203 ms
loop 8 delay 203 ms
loop 9 delay 204 ms
loop 10 delay 204 ms
loop 11 delay 204 ms
loop 12 delay 203 ms
loop 13 delay 203 ms
loop 14 delay 40 ms
loop 15 delay 206 ms
loop 16 delay 171 ms
loop 17 delay 107 ms
loop 18 delay 85 ms
loop 19 delay 204 ms
loop 20 delay 204 ms
loop 21 delay 203 ms
loop 22 delay 208 ms
loop 23 delay 200 ms
loop 24 delay 203 ms
loop 25 delay 203 ms
loop 26 delay 204 ms
loop 27 delay 204 ms
loop 28 delay 120 ms
loop 29 delay 83 ms
loop 30 delay 204 ms
loop 31 delay 203 ms
loop 32 delay 204 ms
loop 33 delay 208 ms
loop 34 delay 199 ms
loop 35 delay 204 ms
loop 36 delay 175 ms
loop 37 delay 11 ms
loop 38 delay 115 ms
loop 39 delay 205 ms
loop 40 delay 204 ms
loop 41 delay 11 ms
loop 42 delay 91 ms
loop 43 delay 202 ms
loop 44 delay 203 ms
loop 45 delay 204 ms
loop 46 delay 209 ms
loop 47 delay 112 ms
loop 48 delay 16 ms
loop 49 delay 69 ms
loop 50 delay 204 ms
loop 51 delay 18 ms
loop 52 delay 14 ms
loop 53 delay 70 ms
loop 54 delay 33 ms
loop 55 delay 184 ms
loop 56 delay 199 ms
loop 57 delay 194 ms
loop 58 delay 102 ms
loop 59 delay 102 ms
loop 60 delay 12 ms
loop 61 delay 197 ms
loop 62 delay 204 ms
loop 63 delay 204 ms
loop 64 delay 206 ms
loop 65 delay 11 ms
loop 66 delay 180 ms
loop 67 delay 202 ms
loop 68 delay 10 ms
loop 69 delay 20 ms
loop 70 delay 199 ms
loop 71 delay 179 ms
loop 72 delay 202 ms
loop 73 delay 33 ms
loop 74 delay 69 ms
loop 75 delay 14 ms
loop 76 delay 88 ms
loop 77 delay 204 ms
loop 78 delay 209 ms
loop 79 delay 198 ms
loop 80 delay 204 ms
loop 81 delay 25 ms
loop 82 delay 76 ms
loop 83 delay 102 ms
loop 84 delay 173 ms
loop 85 delay 13 ms
loop 86 delay 17 ms
loop 87 delay 14 ms
loop 88 delay 191 ms
loop 89 delay 204 ms
loop 90 delay 204 ms
loop 91 delay 102 ms
loop 92 delay 47 ms
loop 93 delay 37 ms
loop 94 delay 142 ms
loop 95 delay 202 ms
loop 96 delay 204 ms
loop 97 delay 202 ms
loop 98 delay 104 ms
loop 99 delay 80 ms
total time = 14193 ms
====== LINUX RESULTS are as expected ======
sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar SleepLatency'
Forked command at 6125
loop 0 delay 10 ms
loop 1 delay 11 ms
loop 2 delay 10 ms
loop 3 delay 10 ms
loop 4 delay 10 ms
loop 5 delay 10 ms
loop 6 delay 10 ms
loop 7 delay 10 ms
loop 8 delay 10 ms
loop 9 delay 10 ms
loop 10 delay 10 ms
loop 11 delay 10 ms
loop 12 delay 10 ms
loop 13 delay 10 ms
loop 14 delay 10 ms
loop 15 delay 10 ms
loop 16 delay 10 ms
loop 17 delay 10 ms
loop 18 delay 10 ms
loop 19 delay 11 ms
loop 20 delay 10 ms
loop 21 delay 10 ms
loop 22 delay 10 ms
loop 23 delay 10 ms
loop 24 delay 10 ms
loop 25 delay 11 ms
loop 26 delay 10 ms
loop 27 delay 10 ms
loop 28 delay 10 ms
loop 29 delay 10 ms
loop 30 delay 10 ms
loop 31 delay 10 ms
loop 32 delay 10 ms
loop 33 delay 10 ms
loop 34 delay 11 ms
loop 35 delay 10 ms
loop 36 delay 10 ms
loop 37 delay 11 ms
loop 38 delay 10 ms
loop 39 delay 10 ms
loop 40 delay 11 ms
loop 41 delay 10 ms
loop 42 delay 10 ms
loop 43 delay 11 ms
loop 44 delay 10 ms
loop 45 delay 10 ms
loop 46 delay 10 ms
loop 47 delay 10 ms
loop 48 delay 10 ms
loop 49 delay 10 ms
loop 50 delay 10 ms
loop 51 delay 10 ms
loop 52 delay 11 ms
loop 53 delay 10 ms
loop 54 delay 10 ms
loop 55 delay 10 ms
loop 56 delay 10 ms
loop 57 delay 10 ms
loop 58 delay 10 ms
loop 59 delay 10 ms
loop 60 delay 10 ms
loop 61 delay 10 ms
loop 62 delay 11 ms
loop 63 delay 10 ms
loop 64 delay 10 ms
loop 65 delay 11 ms
loop 66 delay 10 ms
loop 67 delay 10 ms
loop 68 delay 10 ms
loop 69 delay 10 ms
loop 70 delay 10 ms
loop 71 delay 10 ms
loop 72 delay 11 ms
loop 73 delay 10 ms
loop 74 delay 10 ms
loop 75 delay 10 ms
loop 76 delay 11 ms
loop 77 delay 10 ms
loop 78 delay 10 ms
loop 79 delay 10 ms
loop 80 delay 11 ms
loop 81 delay 10 ms
loop 82 delay 10 ms
loop 83 delay 10 ms
loop 84 delay 10 ms
loop 85 delay 10 ms
loop 86 delay 10 ms
loop 87 delay 10 ms
loop 88 delay 10 ms
loop 89 delay 10 ms
loop 90 delay 10 ms
loop 91 delay 10 ms
loop 92 delay 10 ms
loop 93 delay 10 ms
loop 94 delay 10 ms
loop 95 delay 10 ms
loop 96 delay 10 ms
loop 97 delay 10 ms
loop 98 delay 10 ms
loop 99 delay 10 ms
total time = 1035 ms
Re: OSX 10.10.5 and mesos 0.28.1 -- 10 to 20 X difference in sleep()
method compared to non mesos
Posted by James Mulcahy <ja...@apple.com>.
Hi Rinaldo,
MacOS X has a variety of mechanisms designed to improve energy efficiency, and many of these impact timer behavior. I suspect that this is what is affecting you. There is a whitepaper here, which has more details https://www.apple.com/media/us/osx/2013/docs/OSX_Power_Efficiency_Technology_Overview.pdf
—James
> On Jun 3, 2016, at 13:11, DiGiorgio, Mr. Rinaldo S. <rd...@pace.edu> wrote:
>
> Hi,
>
> We are running the following Java application and we are getting unreasonable deltas in the actual amount time slept. On linux the results are as expected 10, 11, 12 but mostly 10ms. Can you suggest any changes we can make or is this a known issue or a new issue to be investigated? When we run the same code on the same instance of OSX 10.10.5 without mesos -- we get the expected results.
>
>
> public class SleepLatency {
> static final int COUNT = 100;
> static final long DELAY = 10L;
>
> public static void main(String[] args) throws Exception {
> long tstart = System.currentTimeMillis();
> for (int i = 0; i < COUNT; i++) {
> long t0 = System.currentTimeMillis();
> Thread.sleep(DELAY);
> long t1 = System.currentTimeMillis();
> System.out.printf("loop %3d delay %4d ms%n", i, t1 - t0);
> }
> long tfinish = System.currentTimeMillis();
> System.out.printf("total time = %5d ms%n", tfinish - tstart);
> }
> }
>
> ====== OSX RESULTS are 10 to 20 times larger than LINUX Results below =====
>
> sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar SleepLatency'
> loop 0 delay 141 ms
> loop 1 delay 201 ms
> loop 2 delay 81 ms
> loop 3 delay 14 ms
> loop 4 delay 194 ms
> loop 5 delay 149 ms
> loop 6 delay 172 ms
> loop 7 delay 203 ms
> loop 8 delay 203 ms
> loop 9 delay 204 ms
> loop 10 delay 204 ms
> loop 11 delay 204 ms
> loop 12 delay 203 ms
> loop 13 delay 203 ms
> loop 14 delay 40 ms
> loop 15 delay 206 ms
> loop 16 delay 171 ms
> loop 17 delay 107 ms
> loop 18 delay 85 ms
> loop 19 delay 204 ms
> loop 20 delay 204 ms
> loop 21 delay 203 ms
> loop 22 delay 208 ms
> loop 23 delay 200 ms
> loop 24 delay 203 ms
> loop 25 delay 203 ms
> loop 26 delay 204 ms
> loop 27 delay 204 ms
> loop 28 delay 120 ms
> loop 29 delay 83 ms
> loop 30 delay 204 ms
> loop 31 delay 203 ms
> loop 32 delay 204 ms
> loop 33 delay 208 ms
> loop 34 delay 199 ms
> loop 35 delay 204 ms
> loop 36 delay 175 ms
> loop 37 delay 11 ms
> loop 38 delay 115 ms
> loop 39 delay 205 ms
> loop 40 delay 204 ms
> loop 41 delay 11 ms
> loop 42 delay 91 ms
> loop 43 delay 202 ms
> loop 44 delay 203 ms
> loop 45 delay 204 ms
> loop 46 delay 209 ms
> loop 47 delay 112 ms
> loop 48 delay 16 ms
> loop 49 delay 69 ms
> loop 50 delay 204 ms
> loop 51 delay 18 ms
> loop 52 delay 14 ms
> loop 53 delay 70 ms
> loop 54 delay 33 ms
> loop 55 delay 184 ms
> loop 56 delay 199 ms
> loop 57 delay 194 ms
> loop 58 delay 102 ms
> loop 59 delay 102 ms
> loop 60 delay 12 ms
> loop 61 delay 197 ms
> loop 62 delay 204 ms
> loop 63 delay 204 ms
> loop 64 delay 206 ms
> loop 65 delay 11 ms
> loop 66 delay 180 ms
> loop 67 delay 202 ms
> loop 68 delay 10 ms
> loop 69 delay 20 ms
> loop 70 delay 199 ms
> loop 71 delay 179 ms
> loop 72 delay 202 ms
> loop 73 delay 33 ms
> loop 74 delay 69 ms
> loop 75 delay 14 ms
> loop 76 delay 88 ms
> loop 77 delay 204 ms
> loop 78 delay 209 ms
> loop 79 delay 198 ms
> loop 80 delay 204 ms
> loop 81 delay 25 ms
> loop 82 delay 76 ms
> loop 83 delay 102 ms
> loop 84 delay 173 ms
> loop 85 delay 13 ms
> loop 86 delay 17 ms
> loop 87 delay 14 ms
> loop 88 delay 191 ms
> loop 89 delay 204 ms
> loop 90 delay 204 ms
> loop 91 delay 102 ms
> loop 92 delay 47 ms
> loop 93 delay 37 ms
> loop 94 delay 142 ms
> loop 95 delay 202 ms
> loop 96 delay 204 ms
> loop 97 delay 202 ms
> loop 98 delay 104 ms
> loop 99 delay 80 ms
> total time = 14193 ms
>
>
> ====== LINUX RESULTS are as expected ======
>
> sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar SleepLatency'
> Forked command at 6125
> loop 0 delay 10 ms
> loop 1 delay 11 ms
> loop 2 delay 10 ms
> loop 3 delay 10 ms
> loop 4 delay 10 ms
> loop 5 delay 10 ms
> loop 6 delay 10 ms
> loop 7 delay 10 ms
> loop 8 delay 10 ms
> loop 9 delay 10 ms
> loop 10 delay 10 ms
> loop 11 delay 10 ms
> loop 12 delay 10 ms
> loop 13 delay 10 ms
> loop 14 delay 10 ms
> loop 15 delay 10 ms
> loop 16 delay 10 ms
> loop 17 delay 10 ms
> loop 18 delay 10 ms
> loop 19 delay 11 ms
> loop 20 delay 10 ms
> loop 21 delay 10 ms
> loop 22 delay 10 ms
> loop 23 delay 10 ms
> loop 24 delay 10 ms
> loop 25 delay 11 ms
> loop 26 delay 10 ms
> loop 27 delay 10 ms
> loop 28 delay 10 ms
> loop 29 delay 10 ms
> loop 30 delay 10 ms
> loop 31 delay 10 ms
> loop 32 delay 10 ms
> loop 33 delay 10 ms
> loop 34 delay 11 ms
> loop 35 delay 10 ms
> loop 36 delay 10 ms
> loop 37 delay 11 ms
> loop 38 delay 10 ms
> loop 39 delay 10 ms
> loop 40 delay 11 ms
> loop 41 delay 10 ms
> loop 42 delay 10 ms
> loop 43 delay 11 ms
> loop 44 delay 10 ms
> loop 45 delay 10 ms
> loop 46 delay 10 ms
> loop 47 delay 10 ms
> loop 48 delay 10 ms
> loop 49 delay 10 ms
> loop 50 delay 10 ms
> loop 51 delay 10 ms
> loop 52 delay 11 ms
> loop 53 delay 10 ms
> loop 54 delay 10 ms
> loop 55 delay 10 ms
> loop 56 delay 10 ms
> loop 57 delay 10 ms
> loop 58 delay 10 ms
> loop 59 delay 10 ms
> loop 60 delay 10 ms
> loop 61 delay 10 ms
> loop 62 delay 11 ms
> loop 63 delay 10 ms
> loop 64 delay 10 ms
> loop 65 delay 11 ms
> loop 66 delay 10 ms
> loop 67 delay 10 ms
> loop 68 delay 10 ms
> loop 69 delay 10 ms
> loop 70 delay 10 ms
> loop 71 delay 10 ms
> loop 72 delay 11 ms
> loop 73 delay 10 ms
> loop 74 delay 10 ms
> loop 75 delay 10 ms
> loop 76 delay 11 ms
> loop 77 delay 10 ms
> loop 78 delay 10 ms
> loop 79 delay 10 ms
> loop 80 delay 11 ms
> loop 81 delay 10 ms
> loop 82 delay 10 ms
> loop 83 delay 10 ms
> loop 84 delay 10 ms
> loop 85 delay 10 ms
> loop 86 delay 10 ms
> loop 87 delay 10 ms
> loop 88 delay 10 ms
> loop 89 delay 10 ms
> loop 90 delay 10 ms
> loop 91 delay 10 ms
> loop 92 delay 10 ms
> loop 93 delay 10 ms
> loop 94 delay 10 ms
> loop 95 delay 10 ms
> loop 96 delay 10 ms
> loop 97 delay 10 ms
> loop 98 delay 10 ms
> loop 99 delay 10 ms
> total time = 1035 ms
>
>
>
Re: OSX 10.10.5 and mesos 0.28.1 -- 10 to 20 X difference in sleep() method compared to non mesos
Posted by Rinaldo Digiorgio <rd...@pace.edu>.
I performed the following tests
Built the latest tip 1.0 on OS X 10.11.4, 2.3 GHz Intel Core i7 with 16GB and load average of 1+ I ran the test program, SleepLatency.java with Java 1.8 and 1.7 and I am getting very poor results. I am unable to reproduce the results reported by haosdent . I have also increased the priority of the mesos agent and mesos master. Is there something I am missing here in the config.
I have the master and the agent running on the same machine.
Not using zookeeper
Using localhost
No special options for the master and the agent
0 894 1 0 2:15PM ?? 0:29.22 /usr/local/sbin/mesos-master --work_dir=/scratch/mesos/master --ip=127.0.0.1
0 896 1 0 2:15PM ?? 1:15.55 /usr/local/sbin/mesos-slave --master=127.0.0.1:5050 --work_dir=/scratch/mesos/slave
Turned off power nap
Rinaldo
This is the application
public class SleepLatency {
static final int COUNT = 100;
static final long DELAY = 10L;
public static void main(String[] args) throws Exception {
long tstart = System.currentTimeMillis();
for (int i = 0; i < COUNT; i++) {
long t0 = System.currentTimeMillis();
Thread.sleep(DELAY);
long t1 = System.currentTimeMillis();
System.out.printf("loop %3d delay %4d ms%n", i, t1 - t0);
}
long tfinish = System.currentTimeMillis();
System.out.printf("total time = %5d ms%n", tfinish - tstart);
}
}
and how it was launched
mesos-execute --master="127.0.0.1:5050" --name="SleepLatency" --command="cd /tmp && java SleepLatency”
Rinaldo
> On Jun 6, 2016, at 11:28 AM, haosdent <ha...@gmail.com> wrote:
>
> yes, mine is a laptop.
>
> On Mon, Jun 6, 2016 at 11:23 PM, DiGiorgio, Mr. Rinaldo S. <rd...@pace.edu> wrote:
>
>> On Jun 6, 2016, at 11:08, haosdent <ha...@gmail.com> wrote:
>>
>> I use OS X 10.11.4 but I think it should not related to this minor different on OS X version.
>> For settings, I disable `Enable Power Nap while plugged into a power adapter` in `Energy Saver`.
>
> I assume you have a laptop, I have retested with power nap being set to off on an iMac and it did not make a difference. I will try it on a laptop. The other 15 Macs are all towers. Maybe it is a clue, works on laptops but not on desktops.
>> On Mon, Jun 6, 2016 at 10:57 PM, DiGiorgio, Mr. Rinaldo S. <rd...@pace.edu> wrote:
>
>
>> Thanks James and Haosdent,
>>
>> I built my own version of mesos 1.0 and installed it on 10.11.5 and I am getting the same results as 10.10.5 with 0.28.1
>>
>> Do either of you remember what you may have set on your OSX machines to default some of the desktop settings that may be causing this issue?
>>
>>
>> We are already turning off many desktop features since they are not relevant for our use case.
>>
>>
>>
>> Received SUBSCRIBED event
>> Subscribed executor on dhcp-adc-twvpn-3-vpnpool-10-154-101-79.vpn.oracle.com
>> Received LAUNCH event
>> Starting task test-sleep
>> sh -c 'cd /tmp && java SleepLatency'
>> Forked command at 2907
>> loop 0 delay 35 ms
>> loop 1 delay 108 ms
>> loop 2 delay 104 ms
>> loop 3 delay 57 ms
>> loop 4 delay 104 ms
>> loop 5 delay 93 ms
>> loop 6 delay 12 ms
>> loop 7 delay 17 ms
>> loop 8 delay 105 ms
>> loop 9 delay 109 ms
>>
>>
>> > On Jun 4, 2016, at 05:07, haosdent <ha...@gmail.com> wrote:
>> >
>> > Hi, Rinaldo. I test your problem in my local Mesos (run in my mac). It looks normal in my side. I started it by
>> >
>> > ```
>> > mesos-execute --master="localhost:5050" --name="test-sleep" --command="cd /tmp && java SleepLatency"
>> > ```
>> >
>> > ```
>> > Registered executor on localhost
>> > Starting task test-sleep
>> > sh -c 'cd /tmp && java SleepLatency'
>> > Forked command at 42480
>> > loop 0 delay 11 ms
>> > loop 1 delay 12 ms
>> > loop 2 delay 11 ms
>> > loop 3 delay 13 ms
>> > loop 4 delay 12 ms
>> > loop 5 delay 12 ms
>> > loop 6 delay 12 ms
>> > loop 7 delay 12 ms
>> > loop 8 delay 12 ms
>> > loop 9 delay 11 ms
>> > loop 10 delay 12 ms
>> > loop 11 delay 13 ms
>> > loop 12 delay 11 ms
>> > loop 13 delay 11 ms
>> > loop 14 delay 12 ms
>> > loop 15 delay 12 ms
>> > loop 16 delay 13 ms
>> > loop 17 delay 12 ms
>> > loop 18 delay 11 ms
>> > loop 19 delay 12 ms
>> > loop 20 delay 12 ms
>> > loop 21 delay 11 ms
>> > loop 22 delay 12 ms
>> > loop 23 delay 11 ms
>> > loop 24 delay 12 ms
>> > loop 25 delay 12 ms
>> > loop 26 delay 12 ms
>> > loop 27 delay 12 ms
>> > loop 28 delay 13 ms
>> > loop 29 delay 12 ms
>> > loop 30 delay 12 ms
>> > loop 31 delay 11 ms
>> > loop 32 delay 11 ms
>> > loop 33 delay 11 ms
>> > loop 34 delay 13 ms
>> > loop 35 delay 10 ms
>> > loop 36 delay 12 ms
>> > loop 37 delay 11 ms
>> > loop 38 delay 12 ms
>> > loop 39 delay 12 ms
>> > loop 40 delay 12 ms
>> > loop 41 delay 12 ms
>> > loop 42 delay 12 ms
>> > loop 43 delay 11 ms
>> > loop 44 delay 12 ms
>> > loop 45 delay 12 ms
>> > loop 46 delay 12 ms
>> > loop 47 delay 12 ms
>> > loop 48 delay 12 ms
>> > loop 49 delay 12 ms
>> > loop 50 delay 12 ms
>> > loop 51 delay 12 ms
>> > loop 52 delay 12 ms
>> > loop 53 delay 13 ms
>> > loop 54 delay 11 ms
>> > loop 55 delay 12 ms
>> > loop 56 delay 12 ms
>> > loop 57 delay 12 ms
>> > loop 58 delay 12 ms
>> > loop 59 delay 11 ms
>> > loop 60 delay 11 ms
>> > loop 61 delay 11 ms
>> > loop 62 delay 11 ms
>> > loop 63 delay 12 ms
>> > loop 64 delay 12 ms
>> > loop 65 delay 12 ms
>> > loop 66 delay 12 ms
>> > loop 67 delay 12 ms
>> > loop 68 delay 11 ms
>> > loop 69 delay 13 ms
>> > loop 70 delay 12 ms
>> > loop 71 delay 10 ms
>> > loop 72 delay 12 ms
>> > loop 73 delay 10 ms
>> > loop 74 delay 11 ms
>> > loop 75 delay 12 ms
>> > loop 76 delay 10 ms
>> > loop 77 delay 11 ms
>> > loop 78 delay 12 ms
>> > loop 79 delay 10 ms
>> > loop 80 delay 12 ms
>> > loop 81 delay 12 ms
>> > loop 82 delay 11 ms
>> > loop 83 delay 11 ms
>> > loop 84 delay 12 ms
>> > loop 85 delay 11 ms
>> > loop 86 delay 12 ms
>> > loop 87 delay 12 ms
>> > loop 88 delay 12 ms
>> > loop 89 delay 11 ms
>> > loop 90 delay 12 ms
>> > loop 91 delay 12 ms
>> > loop 92 delay 13 ms
>> > loop 93 delay 12 ms
>> > loop 94 delay 11 ms
>> > loop 95 delay 10 ms
>> > loop 96 delay 12 ms
>> > loop 97 delay 11 ms
>> > loop 98 delay 12 ms
>> > loop 99 delay 12 ms
>> > total time = 1215 ms
>> > Command exited with status 0 (pid: 42480)
>> > ```
>> >
>> > On Sat, Jun 4, 2016 at 4:11 AM, DiGiorgio, Mr. Rinaldo S. <rd...@pace.edu> wrote:
>> > Hi,
>> >
>> > We are running the following Java application and we are getting unreasonable deltas in the actual amount time slept. On linux the results are as expected 10, 11, 12 but mostly 10ms. Can you suggest any changes we can make or is this a known issue or a new issue to be investigated? When we run the same code on the same instance of OSX 10.10.5 without mesos -- we get the expected results.
>> >
>> >
>> > public class SleepLatency {
>> > static final int COUNT = 100;
>> > static final long DELAY = 10L;
>> >
>> > public static void main(String[] args) throws Exception {
>> > long tstart = System.currentTimeMillis();
>> > for (int i = 0; i < COUNT; i++) {
>> > long t0 = System.currentTimeMillis();
>> > Thread.sleep(DELAY);
>> > long t1 = System.currentTimeMillis();
>> > System.out.printf("loop %3d delay %4d ms%n", i, t1 - t0);
>> > }
>> > long tfinish = System.currentTimeMillis();
>> > System.out.printf("total time = %5d ms%n", tfinish - tstart);
>> > }
>> > }
>> >
>> > ====== OSX RESULTS are 10 to 20 times larger than LINUX Results below =====
>> >
>> > sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar SleepLatency'
>> > loop 0 delay 141 ms
>> > loop 1 delay 201 ms
>> > loop 2 delay 81 ms
>> > loop 3 delay 14 ms
>> > loop 4 delay 194 ms
>> > loop 5 delay 149 ms
>> > loop 6 delay 172 ms
>> > loop 7 delay 203 ms
>> > loop 8 delay 203 ms
>> > loop 9 delay 204 ms
>> > loop 10 delay 204 ms
>> > loop 11 delay 204 ms
>> > loop 12 delay 203 ms
>> > loop 13 delay 203 ms
>> > loop 14 delay 40 ms
>> > loop 15 delay 206 ms
>> > loop 16 delay 171 ms
>> > loop 17 delay 107 ms
>> > loop 18 delay 85 ms
>> > loop 19 delay 204 ms
>> > loop 20 delay 204 ms
>> > loop 21 delay 203 ms
>> > loop 22 delay 208 ms
>> > loop 23 delay 200 ms
>> > loop 24 delay 203 ms
>> > loop 25 delay 203 ms
>> > loop 26 delay 204 ms
>> > loop 27 delay 204 ms
>> > loop 28 delay 120 ms
>> > loop 29 delay 83 ms
>> > loop 30 delay 204 ms
>> > loop 31 delay 203 ms
>> > loop 32 delay 204 ms
>> > loop 33 delay 208 ms
>> > loop 34 delay 199 ms
>> > loop 35 delay 204 ms
>> > loop 36 delay 175 ms
>> > loop 37 delay 11 ms
>> > loop 38 delay 115 ms
>> > loop 39 delay 205 ms
>> > loop 40 delay 204 ms
>> > loop 41 delay 11 ms
>> > loop 42 delay 91 ms
>> > loop 43 delay 202 ms
>> > loop 44 delay 203 ms
>> > loop 45 delay 204 ms
>> > loop 46 delay 209 ms
>> > loop 47 delay 112 ms
>> > loop 48 delay 16 ms
>> > loop 49 delay 69 ms
>> > loop 50 delay 204 ms
>> > loop 51 delay 18 ms
>> > loop 52 delay 14 ms
>> > loop 53 delay 70 ms
>> > loop 54 delay 33 ms
>> > loop 55 delay 184 ms
>> > loop 56 delay 199 ms
>> > loop 57 delay 194 ms
>> > loop 58 delay 102 ms
>> > loop 59 delay 102 ms
>> > loop 60 delay 12 ms
>> > loop 61 delay 197 ms
>> > loop 62 delay 204 ms
>> > loop 63 delay 204 ms
>> > loop 64 delay 206 ms
>> > loop 65 delay 11 ms
>> > loop 66 delay 180 ms
>> > loop 67 delay 202 ms
>> > loop 68 delay 10 ms
>> > loop 69 delay 20 ms
>> > loop 70 delay 199 ms
>> > loop 71 delay 179 ms
>> > loop 72 delay 202 ms
>> > loop 73 delay 33 ms
>> > loop 74 delay 69 ms
>> > loop 75 delay 14 ms
>> > loop 76 delay 88 ms
>> > loop 77 delay 204 ms
>> > loop 78 delay 209 ms
>> > loop 79 delay 198 ms
>> > loop 80 delay 204 ms
>> > loop 81 delay 25 ms
>> > loop 82 delay 76 ms
>> > loop 83 delay 102 ms
>> > loop 84 delay 173 ms
>> > loop 85 delay 13 ms
>> > loop 86 delay 17 ms
>> > loop 87 delay 14 ms
>> > loop 88 delay 191 ms
>> > loop 89 delay 204 ms
>> > loop 90 delay 204 ms
>> > loop 91 delay 102 ms
>> > loop 92 delay 47 ms
>> > loop 93 delay 37 ms
>> > loop 94 delay 142 ms
>> > loop 95 delay 202 ms
>> > loop 96 delay 204 ms
>> > loop 97 delay 202 ms
>> > loop 98 delay 104 ms
>> > loop 99 delay 80 ms
>> > total time = 14193 ms
>> >
>> >
>> > ====== LINUX RESULTS are as expected ======
>> >
>> > sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar SleepLatency'
>> > Forked command at 6125
>> > loop 0 delay 10 ms
>> > loop 1 delay 11 ms
>> > loop 2 delay 10 ms
>> > loop 3 delay 10 ms
>> > loop 4 delay 10 ms
>> > loop 5 delay 10 ms
>> > loop 6 delay 10 ms
>> > loop 7 delay 10 ms
>> > loop 8 delay 10 ms
>> > loop 9 delay 10 ms
>> > loop 10 delay 10 ms
>> > loop 11 delay 10 ms
>> > loop 12 delay 10 ms
>> > loop 13 delay 10 ms
>> > loop 14 delay 10 ms
>> > loop 15 delay 10 ms
>> > loop 16 delay 10 ms
>> > loop 17 delay 10 ms
>> > loop 18 delay 10 ms
>> > loop 19 delay 11 ms
>> > loop 20 delay 10 ms
>> > loop 21 delay 10 ms
>> > loop 22 delay 10 ms
>> > loop 23 delay 10 ms
>> > loop 24 delay 10 ms
>> > loop 25 delay 11 ms
>> > loop 26 delay 10 ms
>> > loop 27 delay 10 ms
>> > loop 28 delay 10 ms
>> > loop 29 delay 10 ms
>> > loop 30 delay 10 ms
>> > loop 31 delay 10 ms
>> > loop 32 delay 10 ms
>> > loop 33 delay 10 ms
>> > loop 34 delay 11 ms
>> > loop 35 delay 10 ms
>> > loop 36 delay 10 ms
>> > loop 37 delay 11 ms
>> > loop 38 delay 10 ms
>> > loop 39 delay 10 ms
>> > loop 40 delay 11 ms
>> > loop 41 delay 10 ms
>> > loop 42 delay 10 ms
>> > loop 43 delay 11 ms
>> > loop 44 delay 10 ms
>> > loop 45 delay 10 ms
>> > loop 46 delay 10 ms
>> > loop 47 delay 10 ms
>> > loop 48 delay 10 ms
>> > loop 49 delay 10 ms
>> > loop 50 delay 10 ms
>> > loop 51 delay 10 ms
>> > loop 52 delay 11 ms
>> > loop 53 delay 10 ms
>> > loop 54 delay 10 ms
>> > loop 55 delay 10 ms
>> > loop 56 delay 10 ms
>> > loop 57 delay 10 ms
>> > loop 58 delay 10 ms
>> > loop 59 delay 10 ms
>> > loop 60 delay 10 ms
>> > loop 61 delay 10 ms
>> > loop 62 delay 11 ms
>> > loop 63 delay 10 ms
>> > loop 64 delay 10 ms
>> > loop 65 delay 11 ms
>> > loop 66 delay 10 ms
>> > loop 67 delay 10 ms
>> > loop 68 delay 10 ms
>> > loop 69 delay 10 ms
>> > loop 70 delay 10 ms
>> > loop 71 delay 10 ms
>> > loop 72 delay 11 ms
>> > loop 73 delay 10 ms
>> > loop 74 delay 10 ms
>> > loop 75 delay 10 ms
>> > loop 76 delay 11 ms
>> > loop 77 delay 10 ms
>> > loop 78 delay 10 ms
>> > loop 79 delay 10 ms
>> > loop 80 delay 11 ms
>> > loop 81 delay 10 ms
>> > loop 82 delay 10 ms
>> > loop 83 delay 10 ms
>> > loop 84 delay 10 ms
>> > loop 85 delay 10 ms
>> > loop 86 delay 10 ms
>> > loop 87 delay 10 ms
>> > loop 88 delay 10 ms
>> > loop 89 delay 10 ms
>> > loop 90 delay 10 ms
>> > loop 91 delay 10 ms
>> > loop 92 delay 10 ms
>> > loop 93 delay 10 ms
>> > loop 94 delay 10 ms
>> > loop 95 delay 10 ms
>> > loop 96 delay 10 ms
>> > loop 97 delay 10 ms
>> > loop 98 delay 10 ms
>> > loop 99 delay 10 ms
>> > total time = 1035 ms
>> >
>> >
>> >
>> >
>> >
>> >
>> > --
>> > Best Regards,
>> > Haosdent Huang
>>
>>
>>
>>
>> --
>> Best Regards,
>> Haosdent Huang
>
>
>
>
> --
> Best Regards,
> Haosdent Huang
Re: OSX 10.10.5 and mesos 0.28.1 -- 10 to 20 X difference in sleep()
method compared to non mesos
Posted by haosdent <ha...@gmail.com>.
yes, mine is a laptop.
On Mon, Jun 6, 2016 at 11:23 PM, DiGiorgio, Mr. Rinaldo S. <
rdigiorgio@pace.edu> wrote:
>
> On Jun 6, 2016, at 11:08, haosdent <ha...@gmail.com> wrote:
>
> I use OS X 10.11.4 but I think it should not related to this minor
> different on OS X version.
> For settings, I disable `Enable Power Nap while plugged into a power
> adapter` in `Energy Saver`.
>
>
> I assume you have a laptop, I have retested with power nap being set to
> off on an iMac and it did not make a difference. I will try it on a
> laptop. The other 15 Macs are all towers. Maybe it is a clue, works on
> laptops but not on desktops.
>
> On Mon, Jun 6, 2016 at 10:57 PM, DiGiorgio, Mr. Rinaldo S. <
> rdigiorgio@pace.edu> wrote:
>
>
>
> Thanks James and Haosdent,
>>
>> I built my own version of mesos 1.0 and installed it on 10.11.5 and I am
>> getting the same results as 10.10.5 with 0.28.1
>>
>> Do either of you remember what you may have set on your OSX machines to
>> default some of the desktop settings that may be causing this issue?
>>
>>
>> We are already turning off many desktop features since they are not
>> relevant for our use case.
>>
>>
>>
>> Received SUBSCRIBED event
>> Subscribed executor on
>> dhcp-adc-twvpn-3-vpnpool-10-154-101-79.vpn.oracle.com
>> Received LAUNCH event
>> Starting task test-sleep
>> sh -c 'cd /tmp && java SleepLatency'
>> Forked command at 2907
>> loop 0 delay 35 ms
>> loop 1 delay 108 ms
>> loop 2 delay 104 ms
>> loop 3 delay 57 ms
>> loop 4 delay 104 ms
>> loop 5 delay 93 ms
>> loop 6 delay 12 ms
>> loop 7 delay 17 ms
>> loop 8 delay 105 ms
>> loop 9 delay 109 ms
>>
>>
>> > On Jun 4, 2016, at 05:07, haosdent <ha...@gmail.com> wrote:
>> >
>> > Hi, Rinaldo. I test your problem in my local Mesos (run in my mac). It
>> looks normal in my side. I started it by
>> >
>> > ```
>> > mesos-execute --master="localhost:5050" --name="test-sleep"
>> --command="cd /tmp && java SleepLatency"
>> > ```
>> >
>> > ```
>> > Registered executor on localhost
>> > Starting task test-sleep
>> > sh -c 'cd /tmp && java SleepLatency'
>> > Forked command at 42480
>> > loop 0 delay 11 ms
>> > loop 1 delay 12 ms
>> > loop 2 delay 11 ms
>> > loop 3 delay 13 ms
>> > loop 4 delay 12 ms
>> > loop 5 delay 12 ms
>> > loop 6 delay 12 ms
>> > loop 7 delay 12 ms
>> > loop 8 delay 12 ms
>> > loop 9 delay 11 ms
>> > loop 10 delay 12 ms
>> > loop 11 delay 13 ms
>> > loop 12 delay 11 ms
>> > loop 13 delay 11 ms
>> > loop 14 delay 12 ms
>> > loop 15 delay 12 ms
>> > loop 16 delay 13 ms
>> > loop 17 delay 12 ms
>> > loop 18 delay 11 ms
>> > loop 19 delay 12 ms
>> > loop 20 delay 12 ms
>> > loop 21 delay 11 ms
>> > loop 22 delay 12 ms
>> > loop 23 delay 11 ms
>> > loop 24 delay 12 ms
>> > loop 25 delay 12 ms
>> > loop 26 delay 12 ms
>> > loop 27 delay 12 ms
>> > loop 28 delay 13 ms
>> > loop 29 delay 12 ms
>> > loop 30 delay 12 ms
>> > loop 31 delay 11 ms
>> > loop 32 delay 11 ms
>> > loop 33 delay 11 ms
>> > loop 34 delay 13 ms
>> > loop 35 delay 10 ms
>> > loop 36 delay 12 ms
>> > loop 37 delay 11 ms
>> > loop 38 delay 12 ms
>> > loop 39 delay 12 ms
>> > loop 40 delay 12 ms
>> > loop 41 delay 12 ms
>> > loop 42 delay 12 ms
>> > loop 43 delay 11 ms
>> > loop 44 delay 12 ms
>> > loop 45 delay 12 ms
>> > loop 46 delay 12 ms
>> > loop 47 delay 12 ms
>> > loop 48 delay 12 ms
>> > loop 49 delay 12 ms
>> > loop 50 delay 12 ms
>> > loop 51 delay 12 ms
>> > loop 52 delay 12 ms
>> > loop 53 delay 13 ms
>> > loop 54 delay 11 ms
>> > loop 55 delay 12 ms
>> > loop 56 delay 12 ms
>> > loop 57 delay 12 ms
>> > loop 58 delay 12 ms
>> > loop 59 delay 11 ms
>> > loop 60 delay 11 ms
>> > loop 61 delay 11 ms
>> > loop 62 delay 11 ms
>> > loop 63 delay 12 ms
>> > loop 64 delay 12 ms
>> > loop 65 delay 12 ms
>> > loop 66 delay 12 ms
>> > loop 67 delay 12 ms
>> > loop 68 delay 11 ms
>> > loop 69 delay 13 ms
>> > loop 70 delay 12 ms
>> > loop 71 delay 10 ms
>> > loop 72 delay 12 ms
>> > loop 73 delay 10 ms
>> > loop 74 delay 11 ms
>> > loop 75 delay 12 ms
>> > loop 76 delay 10 ms
>> > loop 77 delay 11 ms
>> > loop 78 delay 12 ms
>> > loop 79 delay 10 ms
>> > loop 80 delay 12 ms
>> > loop 81 delay 12 ms
>> > loop 82 delay 11 ms
>> > loop 83 delay 11 ms
>> > loop 84 delay 12 ms
>> > loop 85 delay 11 ms
>> > loop 86 delay 12 ms
>> > loop 87 delay 12 ms
>> > loop 88 delay 12 ms
>> > loop 89 delay 11 ms
>> > loop 90 delay 12 ms
>> > loop 91 delay 12 ms
>> > loop 92 delay 13 ms
>> > loop 93 delay 12 ms
>> > loop 94 delay 11 ms
>> > loop 95 delay 10 ms
>> > loop 96 delay 12 ms
>> > loop 97 delay 11 ms
>> > loop 98 delay 12 ms
>> > loop 99 delay 12 ms
>> > total time = 1215 ms
>> > Command exited with status 0 (pid: 42480)
>> > ```
>> >
>> > On Sat, Jun 4, 2016 at 4:11 AM, DiGiorgio, Mr. Rinaldo S. <
>> rdigiorgio@pace.edu> wrote:
>> > Hi,
>> >
>> > We are running the following Java application and we are
>> getting unreasonable deltas in the actual amount time slept. On linux the
>> results are as expected 10, 11, 12 but mostly 10ms. Can you suggest any
>> changes we can make or is this a known issue or a new issue to be
>> investigated? When we run the same code on the same instance of OSX 10.10.5
>> without mesos -- we get the expected results.
>> >
>> >
>> > public class SleepLatency {
>> > static final int COUNT = 100;
>> > static final long DELAY = 10L;
>> >
>> > public static void main(String[] args) throws Exception {
>> > long tstart = System.currentTimeMillis();
>> > for (int i = 0; i < COUNT; i++) {
>> > long t0 = System.currentTimeMillis();
>> > Thread.sleep(DELAY);
>> > long t1 = System.currentTimeMillis();
>> > System.out.printf("loop %3d delay %4d ms%n", i, t1 - t0);
>> > }
>> > long tfinish = System.currentTimeMillis();
>> > System.out.printf("total time = %5d ms%n", tfinish - tstart);
>> > }
>> > }
>> >
>> > ====== OSX RESULTS are 10 to 20 times larger than LINUX Results
>> below =====
>> >
>> > sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar
>> SleepLatency'
>> > loop 0 delay 141 ms
>> > loop 1 delay 201 ms
>> > loop 2 delay 81 ms
>> > loop 3 delay 14 ms
>> > loop 4 delay 194 ms
>> > loop 5 delay 149 ms
>> > loop 6 delay 172 ms
>> > loop 7 delay 203 ms
>> > loop 8 delay 203 ms
>> > loop 9 delay 204 ms
>> > loop 10 delay 204 ms
>> > loop 11 delay 204 ms
>> > loop 12 delay 203 ms
>> > loop 13 delay 203 ms
>> > loop 14 delay 40 ms
>> > loop 15 delay 206 ms
>> > loop 16 delay 171 ms
>> > loop 17 delay 107 ms
>> > loop 18 delay 85 ms
>> > loop 19 delay 204 ms
>> > loop 20 delay 204 ms
>> > loop 21 delay 203 ms
>> > loop 22 delay 208 ms
>> > loop 23 delay 200 ms
>> > loop 24 delay 203 ms
>> > loop 25 delay 203 ms
>> > loop 26 delay 204 ms
>> > loop 27 delay 204 ms
>> > loop 28 delay 120 ms
>> > loop 29 delay 83 ms
>> > loop 30 delay 204 ms
>> > loop 31 delay 203 ms
>> > loop 32 delay 204 ms
>> > loop 33 delay 208 ms
>> > loop 34 delay 199 ms
>> > loop 35 delay 204 ms
>> > loop 36 delay 175 ms
>> > loop 37 delay 11 ms
>> > loop 38 delay 115 ms
>> > loop 39 delay 205 ms
>> > loop 40 delay 204 ms
>> > loop 41 delay 11 ms
>> > loop 42 delay 91 ms
>> > loop 43 delay 202 ms
>> > loop 44 delay 203 ms
>> > loop 45 delay 204 ms
>> > loop 46 delay 209 ms
>> > loop 47 delay 112 ms
>> > loop 48 delay 16 ms
>> > loop 49 delay 69 ms
>> > loop 50 delay 204 ms
>> > loop 51 delay 18 ms
>> > loop 52 delay 14 ms
>> > loop 53 delay 70 ms
>> > loop 54 delay 33 ms
>> > loop 55 delay 184 ms
>> > loop 56 delay 199 ms
>> > loop 57 delay 194 ms
>> > loop 58 delay 102 ms
>> > loop 59 delay 102 ms
>> > loop 60 delay 12 ms
>> > loop 61 delay 197 ms
>> > loop 62 delay 204 ms
>> > loop 63 delay 204 ms
>> > loop 64 delay 206 ms
>> > loop 65 delay 11 ms
>> > loop 66 delay 180 ms
>> > loop 67 delay 202 ms
>> > loop 68 delay 10 ms
>> > loop 69 delay 20 ms
>> > loop 70 delay 199 ms
>> > loop 71 delay 179 ms
>> > loop 72 delay 202 ms
>> > loop 73 delay 33 ms
>> > loop 74 delay 69 ms
>> > loop 75 delay 14 ms
>> > loop 76 delay 88 ms
>> > loop 77 delay 204 ms
>> > loop 78 delay 209 ms
>> > loop 79 delay 198 ms
>> > loop 80 delay 204 ms
>> > loop 81 delay 25 ms
>> > loop 82 delay 76 ms
>> > loop 83 delay 102 ms
>> > loop 84 delay 173 ms
>> > loop 85 delay 13 ms
>> > loop 86 delay 17 ms
>> > loop 87 delay 14 ms
>> > loop 88 delay 191 ms
>> > loop 89 delay 204 ms
>> > loop 90 delay 204 ms
>> > loop 91 delay 102 ms
>> > loop 92 delay 47 ms
>> > loop 93 delay 37 ms
>> > loop 94 delay 142 ms
>> > loop 95 delay 202 ms
>> > loop 96 delay 204 ms
>> > loop 97 delay 202 ms
>> > loop 98 delay 104 ms
>> > loop 99 delay 80 ms
>> > total time = 14193 ms
>> >
>> >
>> > ====== LINUX RESULTS are as expected ======
>> >
>> > sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar
>> SleepLatency'
>> > Forked command at 6125
>> > loop 0 delay 10 ms
>> > loop 1 delay 11 ms
>> > loop 2 delay 10 ms
>> > loop 3 delay 10 ms
>> > loop 4 delay 10 ms
>> > loop 5 delay 10 ms
>> > loop 6 delay 10 ms
>> > loop 7 delay 10 ms
>> > loop 8 delay 10 ms
>> > loop 9 delay 10 ms
>> > loop 10 delay 10 ms
>> > loop 11 delay 10 ms
>> > loop 12 delay 10 ms
>> > loop 13 delay 10 ms
>> > loop 14 delay 10 ms
>> > loop 15 delay 10 ms
>> > loop 16 delay 10 ms
>> > loop 17 delay 10 ms
>> > loop 18 delay 10 ms
>> > loop 19 delay 11 ms
>> > loop 20 delay 10 ms
>> > loop 21 delay 10 ms
>> > loop 22 delay 10 ms
>> > loop 23 delay 10 ms
>> > loop 24 delay 10 ms
>> > loop 25 delay 11 ms
>> > loop 26 delay 10 ms
>> > loop 27 delay 10 ms
>> > loop 28 delay 10 ms
>> > loop 29 delay 10 ms
>> > loop 30 delay 10 ms
>> > loop 31 delay 10 ms
>> > loop 32 delay 10 ms
>> > loop 33 delay 10 ms
>> > loop 34 delay 11 ms
>> > loop 35 delay 10 ms
>> > loop 36 delay 10 ms
>> > loop 37 delay 11 ms
>> > loop 38 delay 10 ms
>> > loop 39 delay 10 ms
>> > loop 40 delay 11 ms
>> > loop 41 delay 10 ms
>> > loop 42 delay 10 ms
>> > loop 43 delay 11 ms
>> > loop 44 delay 10 ms
>> > loop 45 delay 10 ms
>> > loop 46 delay 10 ms
>> > loop 47 delay 10 ms
>> > loop 48 delay 10 ms
>> > loop 49 delay 10 ms
>> > loop 50 delay 10 ms
>> > loop 51 delay 10 ms
>> > loop 52 delay 11 ms
>> > loop 53 delay 10 ms
>> > loop 54 delay 10 ms
>> > loop 55 delay 10 ms
>> > loop 56 delay 10 ms
>> > loop 57 delay 10 ms
>> > loop 58 delay 10 ms
>> > loop 59 delay 10 ms
>> > loop 60 delay 10 ms
>> > loop 61 delay 10 ms
>> > loop 62 delay 11 ms
>> > loop 63 delay 10 ms
>> > loop 64 delay 10 ms
>> > loop 65 delay 11 ms
>> > loop 66 delay 10 ms
>> > loop 67 delay 10 ms
>> > loop 68 delay 10 ms
>> > loop 69 delay 10 ms
>> > loop 70 delay 10 ms
>> > loop 71 delay 10 ms
>> > loop 72 delay 11 ms
>> > loop 73 delay 10 ms
>> > loop 74 delay 10 ms
>> > loop 75 delay 10 ms
>> > loop 76 delay 11 ms
>> > loop 77 delay 10 ms
>> > loop 78 delay 10 ms
>> > loop 79 delay 10 ms
>> > loop 80 delay 11 ms
>> > loop 81 delay 10 ms
>> > loop 82 delay 10 ms
>> > loop 83 delay 10 ms
>> > loop 84 delay 10 ms
>> > loop 85 delay 10 ms
>> > loop 86 delay 10 ms
>> > loop 87 delay 10 ms
>> > loop 88 delay 10 ms
>> > loop 89 delay 10 ms
>> > loop 90 delay 10 ms
>> > loop 91 delay 10 ms
>> > loop 92 delay 10 ms
>> > loop 93 delay 10 ms
>> > loop 94 delay 10 ms
>> > loop 95 delay 10 ms
>> > loop 96 delay 10 ms
>> > loop 97 delay 10 ms
>> > loop 98 delay 10 ms
>> > loop 99 delay 10 ms
>> > total time = 1035 ms
>> >
>> >
>> >
>> >
>> >
>> >
>> > --
>> > Best Regards,
>> > Haosdent Huang
>>
>>
>
>
> --
> Best Regards,
> Haosdent Huang
>
>
>
--
Best Regards,
Haosdent Huang
Re: OSX 10.10.5 and mesos 0.28.1 -- 10 to 20 X difference in sleep()
method compared to non mesos
Posted by "DiGiorgio, Mr. Rinaldo S." <rd...@pace.edu>.
On Jun 6, 2016, at 11:08, haosdent <ha...@gmail.com>> wrote:
I use OS X 10.11.4 but I think it should not related to this minor different on OS X version.
For settings, I disable `Enable Power Nap while plugged into a power adapter` in `Energy Saver`.
I assume you have a laptop, I have retested with power nap being set to off on an iMac and it did not make a difference. I will try it on a laptop. The other 15 Macs are all towers. Maybe it is a clue, works on laptops but not on desktops.
On Mon, Jun 6, 2016 at 10:57 PM, DiGiorgio, Mr. Rinaldo S. <rd...@pace.edu>> wrote:
Thanks James and Haosdent,
I built my own version of mesos 1.0 and installed it on 10.11.5 and I am getting the same results as 10.10.5 with 0.28.1
Do either of you remember what you may have set on your OSX machines to default some of the desktop settings that may be causing this issue?
We are already turning off many desktop features since they are not relevant for our use case.
Received SUBSCRIBED event
Subscribed executor on dhcp-adc-twvpn-3-vpnpool-10-154-101-79.vpn.oracle.com<http://dhcp-adc-twvpn-3-vpnpool-10-154-101-79.vpn.oracle.com/>
Received LAUNCH event
Starting task test-sleep
sh -c 'cd /tmp && java SleepLatency'
Forked command at 2907
loop 0 delay 35 ms
loop 1 delay 108 ms
loop 2 delay 104 ms
loop 3 delay 57 ms
loop 4 delay 104 ms
loop 5 delay 93 ms
loop 6 delay 12 ms
loop 7 delay 17 ms
loop 8 delay 105 ms
loop 9 delay 109 ms
> On Jun 4, 2016, at 05:07, haosdent <ha...@gmail.com>> wrote:
>
> Hi, Rinaldo. I test your problem in my local Mesos (run in my mac). It looks normal in my side. I started it by
>
> ```
> mesos-execute --master="localhost:5050" --name="test-sleep" --command="cd /tmp && java SleepLatency"
> ```
>
> ```
> Registered executor on localhost
> Starting task test-sleep
> sh -c 'cd /tmp && java SleepLatency'
> Forked command at 42480
> loop 0 delay 11 ms
> loop 1 delay 12 ms
> loop 2 delay 11 ms
> loop 3 delay 13 ms
> loop 4 delay 12 ms
> loop 5 delay 12 ms
> loop 6 delay 12 ms
> loop 7 delay 12 ms
> loop 8 delay 12 ms
> loop 9 delay 11 ms
> loop 10 delay 12 ms
> loop 11 delay 13 ms
> loop 12 delay 11 ms
> loop 13 delay 11 ms
> loop 14 delay 12 ms
> loop 15 delay 12 ms
> loop 16 delay 13 ms
> loop 17 delay 12 ms
> loop 18 delay 11 ms
> loop 19 delay 12 ms
> loop 20 delay 12 ms
> loop 21 delay 11 ms
> loop 22 delay 12 ms
> loop 23 delay 11 ms
> loop 24 delay 12 ms
> loop 25 delay 12 ms
> loop 26 delay 12 ms
> loop 27 delay 12 ms
> loop 28 delay 13 ms
> loop 29 delay 12 ms
> loop 30 delay 12 ms
> loop 31 delay 11 ms
> loop 32 delay 11 ms
> loop 33 delay 11 ms
> loop 34 delay 13 ms
> loop 35 delay 10 ms
> loop 36 delay 12 ms
> loop 37 delay 11 ms
> loop 38 delay 12 ms
> loop 39 delay 12 ms
> loop 40 delay 12 ms
> loop 41 delay 12 ms
> loop 42 delay 12 ms
> loop 43 delay 11 ms
> loop 44 delay 12 ms
> loop 45 delay 12 ms
> loop 46 delay 12 ms
> loop 47 delay 12 ms
> loop 48 delay 12 ms
> loop 49 delay 12 ms
> loop 50 delay 12 ms
> loop 51 delay 12 ms
> loop 52 delay 12 ms
> loop 53 delay 13 ms
> loop 54 delay 11 ms
> loop 55 delay 12 ms
> loop 56 delay 12 ms
> loop 57 delay 12 ms
> loop 58 delay 12 ms
> loop 59 delay 11 ms
> loop 60 delay 11 ms
> loop 61 delay 11 ms
> loop 62 delay 11 ms
> loop 63 delay 12 ms
> loop 64 delay 12 ms
> loop 65 delay 12 ms
> loop 66 delay 12 ms
> loop 67 delay 12 ms
> loop 68 delay 11 ms
> loop 69 delay 13 ms
> loop 70 delay 12 ms
> loop 71 delay 10 ms
> loop 72 delay 12 ms
> loop 73 delay 10 ms
> loop 74 delay 11 ms
> loop 75 delay 12 ms
> loop 76 delay 10 ms
> loop 77 delay 11 ms
> loop 78 delay 12 ms
> loop 79 delay 10 ms
> loop 80 delay 12 ms
> loop 81 delay 12 ms
> loop 82 delay 11 ms
> loop 83 delay 11 ms
> loop 84 delay 12 ms
> loop 85 delay 11 ms
> loop 86 delay 12 ms
> loop 87 delay 12 ms
> loop 88 delay 12 ms
> loop 89 delay 11 ms
> loop 90 delay 12 ms
> loop 91 delay 12 ms
> loop 92 delay 13 ms
> loop 93 delay 12 ms
> loop 94 delay 11 ms
> loop 95 delay 10 ms
> loop 96 delay 12 ms
> loop 97 delay 11 ms
> loop 98 delay 12 ms
> loop 99 delay 12 ms
> total time = 1215 ms
> Command exited with status 0 (pid: 42480)
> ```
>
> On Sat, Jun 4, 2016 at 4:11 AM, DiGiorgio, Mr. Rinaldo S. <rd...@pace.edu>> wrote:
> Hi,
>
> We are running the following Java application and we are getting unreasonable deltas in the actual amount time slept. On linux the results are as expected 10, 11, 12 but mostly 10ms. Can you suggest any changes we can make or is this a known issue or a new issue to be investigated? When we run the same code on the same instance of OSX 10.10.5 without mesos -- we get the expected results.
>
>
> public class SleepLatency {
> static final int COUNT = 100;
> static final long DELAY = 10L;
>
> public static void main(String[] args) throws Exception {
> long tstart = System.currentTimeMillis();
> for (int i = 0; i < COUNT; i++) {
> long t0 = System.currentTimeMillis();
> Thread.sleep(DELAY);
> long t1 = System.currentTimeMillis();
> System.out.printf("loop %3d delay %4d ms%n", i, t1 - t0);
> }
> long tfinish = System.currentTimeMillis();
> System.out.printf("total time = %5d ms%n", tfinish - tstart);
> }
> }
>
> ====== OSX RESULTS are 10 to 20 times larger than LINUX Results below =====
>
> sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar SleepLatency'
> loop 0 delay 141 ms
> loop 1 delay 201 ms
> loop 2 delay 81 ms
> loop 3 delay 14 ms
> loop 4 delay 194 ms
> loop 5 delay 149 ms
> loop 6 delay 172 ms
> loop 7 delay 203 ms
> loop 8 delay 203 ms
> loop 9 delay 204 ms
> loop 10 delay 204 ms
> loop 11 delay 204 ms
> loop 12 delay 203 ms
> loop 13 delay 203 ms
> loop 14 delay 40 ms
> loop 15 delay 206 ms
> loop 16 delay 171 ms
> loop 17 delay 107 ms
> loop 18 delay 85 ms
> loop 19 delay 204 ms
> loop 20 delay 204 ms
> loop 21 delay 203 ms
> loop 22 delay 208 ms
> loop 23 delay 200 ms
> loop 24 delay 203 ms
> loop 25 delay 203 ms
> loop 26 delay 204 ms
> loop 27 delay 204 ms
> loop 28 delay 120 ms
> loop 29 delay 83 ms
> loop 30 delay 204 ms
> loop 31 delay 203 ms
> loop 32 delay 204 ms
> loop 33 delay 208 ms
> loop 34 delay 199 ms
> loop 35 delay 204 ms
> loop 36 delay 175 ms
> loop 37 delay 11 ms
> loop 38 delay 115 ms
> loop 39 delay 205 ms
> loop 40 delay 204 ms
> loop 41 delay 11 ms
> loop 42 delay 91 ms
> loop 43 delay 202 ms
> loop 44 delay 203 ms
> loop 45 delay 204 ms
> loop 46 delay 209 ms
> loop 47 delay 112 ms
> loop 48 delay 16 ms
> loop 49 delay 69 ms
> loop 50 delay 204 ms
> loop 51 delay 18 ms
> loop 52 delay 14 ms
> loop 53 delay 70 ms
> loop 54 delay 33 ms
> loop 55 delay 184 ms
> loop 56 delay 199 ms
> loop 57 delay 194 ms
> loop 58 delay 102 ms
> loop 59 delay 102 ms
> loop 60 delay 12 ms
> loop 61 delay 197 ms
> loop 62 delay 204 ms
> loop 63 delay 204 ms
> loop 64 delay 206 ms
> loop 65 delay 11 ms
> loop 66 delay 180 ms
> loop 67 delay 202 ms
> loop 68 delay 10 ms
> loop 69 delay 20 ms
> loop 70 delay 199 ms
> loop 71 delay 179 ms
> loop 72 delay 202 ms
> loop 73 delay 33 ms
> loop 74 delay 69 ms
> loop 75 delay 14 ms
> loop 76 delay 88 ms
> loop 77 delay 204 ms
> loop 78 delay 209 ms
> loop 79 delay 198 ms
> loop 80 delay 204 ms
> loop 81 delay 25 ms
> loop 82 delay 76 ms
> loop 83 delay 102 ms
> loop 84 delay 173 ms
> loop 85 delay 13 ms
> loop 86 delay 17 ms
> loop 87 delay 14 ms
> loop 88 delay 191 ms
> loop 89 delay 204 ms
> loop 90 delay 204 ms
> loop 91 delay 102 ms
> loop 92 delay 47 ms
> loop 93 delay 37 ms
> loop 94 delay 142 ms
> loop 95 delay 202 ms
> loop 96 delay 204 ms
> loop 97 delay 202 ms
> loop 98 delay 104 ms
> loop 99 delay 80 ms
> total time = 14193 ms
>
>
> ====== LINUX RESULTS are as expected ======
>
> sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar SleepLatency'
> Forked command at 6125
> loop 0 delay 10 ms
> loop 1 delay 11 ms
> loop 2 delay 10 ms
> loop 3 delay 10 ms
> loop 4 delay 10 ms
> loop 5 delay 10 ms
> loop 6 delay 10 ms
> loop 7 delay 10 ms
> loop 8 delay 10 ms
> loop 9 delay 10 ms
> loop 10 delay 10 ms
> loop 11 delay 10 ms
> loop 12 delay 10 ms
> loop 13 delay 10 ms
> loop 14 delay 10 ms
> loop 15 delay 10 ms
> loop 16 delay 10 ms
> loop 17 delay 10 ms
> loop 18 delay 10 ms
> loop 19 delay 11 ms
> loop 20 delay 10 ms
> loop 21 delay 10 ms
> loop 22 delay 10 ms
> loop 23 delay 10 ms
> loop 24 delay 10 ms
> loop 25 delay 11 ms
> loop 26 delay 10 ms
> loop 27 delay 10 ms
> loop 28 delay 10 ms
> loop 29 delay 10 ms
> loop 30 delay 10 ms
> loop 31 delay 10 ms
> loop 32 delay 10 ms
> loop 33 delay 10 ms
> loop 34 delay 11 ms
> loop 35 delay 10 ms
> loop 36 delay 10 ms
> loop 37 delay 11 ms
> loop 38 delay 10 ms
> loop 39 delay 10 ms
> loop 40 delay 11 ms
> loop 41 delay 10 ms
> loop 42 delay 10 ms
> loop 43 delay 11 ms
> loop 44 delay 10 ms
> loop 45 delay 10 ms
> loop 46 delay 10 ms
> loop 47 delay 10 ms
> loop 48 delay 10 ms
> loop 49 delay 10 ms
> loop 50 delay 10 ms
> loop 51 delay 10 ms
> loop 52 delay 11 ms
> loop 53 delay 10 ms
> loop 54 delay 10 ms
> loop 55 delay 10 ms
> loop 56 delay 10 ms
> loop 57 delay 10 ms
> loop 58 delay 10 ms
> loop 59 delay 10 ms
> loop 60 delay 10 ms
> loop 61 delay 10 ms
> loop 62 delay 11 ms
> loop 63 delay 10 ms
> loop 64 delay 10 ms
> loop 65 delay 11 ms
> loop 66 delay 10 ms
> loop 67 delay 10 ms
> loop 68 delay 10 ms
> loop 69 delay 10 ms
> loop 70 delay 10 ms
> loop 71 delay 10 ms
> loop 72 delay 11 ms
> loop 73 delay 10 ms
> loop 74 delay 10 ms
> loop 75 delay 10 ms
> loop 76 delay 11 ms
> loop 77 delay 10 ms
> loop 78 delay 10 ms
> loop 79 delay 10 ms
> loop 80 delay 11 ms
> loop 81 delay 10 ms
> loop 82 delay 10 ms
> loop 83 delay 10 ms
> loop 84 delay 10 ms
> loop 85 delay 10 ms
> loop 86 delay 10 ms
> loop 87 delay 10 ms
> loop 88 delay 10 ms
> loop 89 delay 10 ms
> loop 90 delay 10 ms
> loop 91 delay 10 ms
> loop 92 delay 10 ms
> loop 93 delay 10 ms
> loop 94 delay 10 ms
> loop 95 delay 10 ms
> loop 96 delay 10 ms
> loop 97 delay 10 ms
> loop 98 delay 10 ms
> loop 99 delay 10 ms
> total time = 1035 ms
>
>
>
>
>
>
> --
> Best Regards,
> Haosdent Huang
--
Best Regards,
Haosdent Huang
Re: OSX 10.10.5 and mesos 0.28.1 -- 10 to 20 X difference in sleep()
method compared to non mesos
Posted by haosdent <ha...@gmail.com>.
I use OS X 10.11.4 but I think it should not related to this minor
different on OS X version.
For settings, I disable `Enable Power Nap while plugged into a power
adapter` in `Energy Saver`.
On Mon, Jun 6, 2016 at 10:57 PM, DiGiorgio, Mr. Rinaldo S. <
rdigiorgio@pace.edu> wrote:
> Thanks James and Haosdent,
>
> I built my own version of mesos 1.0 and installed it on 10.11.5 and I am
> getting the same results as 10.10.5 with 0.28.1
>
> Do either of you remember what you may have set on your OSX machines to
> default some of the desktop settings that may be causing this issue?
>
>
> We are already turning off many desktop features since they are not
> relevant for our use case.
>
>
>
> Received SUBSCRIBED event
> Subscribed executor on
> dhcp-adc-twvpn-3-vpnpool-10-154-101-79.vpn.oracle.com
> Received LAUNCH event
> Starting task test-sleep
> sh -c 'cd /tmp && java SleepLatency'
> Forked command at 2907
> loop 0 delay 35 ms
> loop 1 delay 108 ms
> loop 2 delay 104 ms
> loop 3 delay 57 ms
> loop 4 delay 104 ms
> loop 5 delay 93 ms
> loop 6 delay 12 ms
> loop 7 delay 17 ms
> loop 8 delay 105 ms
> loop 9 delay 109 ms
>
>
> > On Jun 4, 2016, at 05:07, haosdent <ha...@gmail.com> wrote:
> >
> > Hi, Rinaldo. I test your problem in my local Mesos (run in my mac). It
> looks normal in my side. I started it by
> >
> > ```
> > mesos-execute --master="localhost:5050" --name="test-sleep"
> --command="cd /tmp && java SleepLatency"
> > ```
> >
> > ```
> > Registered executor on localhost
> > Starting task test-sleep
> > sh -c 'cd /tmp && java SleepLatency'
> > Forked command at 42480
> > loop 0 delay 11 ms
> > loop 1 delay 12 ms
> > loop 2 delay 11 ms
> > loop 3 delay 13 ms
> > loop 4 delay 12 ms
> > loop 5 delay 12 ms
> > loop 6 delay 12 ms
> > loop 7 delay 12 ms
> > loop 8 delay 12 ms
> > loop 9 delay 11 ms
> > loop 10 delay 12 ms
> > loop 11 delay 13 ms
> > loop 12 delay 11 ms
> > loop 13 delay 11 ms
> > loop 14 delay 12 ms
> > loop 15 delay 12 ms
> > loop 16 delay 13 ms
> > loop 17 delay 12 ms
> > loop 18 delay 11 ms
> > loop 19 delay 12 ms
> > loop 20 delay 12 ms
> > loop 21 delay 11 ms
> > loop 22 delay 12 ms
> > loop 23 delay 11 ms
> > loop 24 delay 12 ms
> > loop 25 delay 12 ms
> > loop 26 delay 12 ms
> > loop 27 delay 12 ms
> > loop 28 delay 13 ms
> > loop 29 delay 12 ms
> > loop 30 delay 12 ms
> > loop 31 delay 11 ms
> > loop 32 delay 11 ms
> > loop 33 delay 11 ms
> > loop 34 delay 13 ms
> > loop 35 delay 10 ms
> > loop 36 delay 12 ms
> > loop 37 delay 11 ms
> > loop 38 delay 12 ms
> > loop 39 delay 12 ms
> > loop 40 delay 12 ms
> > loop 41 delay 12 ms
> > loop 42 delay 12 ms
> > loop 43 delay 11 ms
> > loop 44 delay 12 ms
> > loop 45 delay 12 ms
> > loop 46 delay 12 ms
> > loop 47 delay 12 ms
> > loop 48 delay 12 ms
> > loop 49 delay 12 ms
> > loop 50 delay 12 ms
> > loop 51 delay 12 ms
> > loop 52 delay 12 ms
> > loop 53 delay 13 ms
> > loop 54 delay 11 ms
> > loop 55 delay 12 ms
> > loop 56 delay 12 ms
> > loop 57 delay 12 ms
> > loop 58 delay 12 ms
> > loop 59 delay 11 ms
> > loop 60 delay 11 ms
> > loop 61 delay 11 ms
> > loop 62 delay 11 ms
> > loop 63 delay 12 ms
> > loop 64 delay 12 ms
> > loop 65 delay 12 ms
> > loop 66 delay 12 ms
> > loop 67 delay 12 ms
> > loop 68 delay 11 ms
> > loop 69 delay 13 ms
> > loop 70 delay 12 ms
> > loop 71 delay 10 ms
> > loop 72 delay 12 ms
> > loop 73 delay 10 ms
> > loop 74 delay 11 ms
> > loop 75 delay 12 ms
> > loop 76 delay 10 ms
> > loop 77 delay 11 ms
> > loop 78 delay 12 ms
> > loop 79 delay 10 ms
> > loop 80 delay 12 ms
> > loop 81 delay 12 ms
> > loop 82 delay 11 ms
> > loop 83 delay 11 ms
> > loop 84 delay 12 ms
> > loop 85 delay 11 ms
> > loop 86 delay 12 ms
> > loop 87 delay 12 ms
> > loop 88 delay 12 ms
> > loop 89 delay 11 ms
> > loop 90 delay 12 ms
> > loop 91 delay 12 ms
> > loop 92 delay 13 ms
> > loop 93 delay 12 ms
> > loop 94 delay 11 ms
> > loop 95 delay 10 ms
> > loop 96 delay 12 ms
> > loop 97 delay 11 ms
> > loop 98 delay 12 ms
> > loop 99 delay 12 ms
> > total time = 1215 ms
> > Command exited with status 0 (pid: 42480)
> > ```
> >
> > On Sat, Jun 4, 2016 at 4:11 AM, DiGiorgio, Mr. Rinaldo S. <
> rdigiorgio@pace.edu> wrote:
> > Hi,
> >
> > We are running the following Java application and we are getting
> unreasonable deltas in the actual amount time slept. On linux the results
> are as expected 10, 11, 12 but mostly 10ms. Can you suggest any changes we
> can make or is this a known issue or a new issue to be investigated? When
> we run the same code on the same instance of OSX 10.10.5 without mesos --
> we get the expected results.
> >
> >
> > public class SleepLatency {
> > static final int COUNT = 100;
> > static final long DELAY = 10L;
> >
> > public static void main(String[] args) throws Exception {
> > long tstart = System.currentTimeMillis();
> > for (int i = 0; i < COUNT; i++) {
> > long t0 = System.currentTimeMillis();
> > Thread.sleep(DELAY);
> > long t1 = System.currentTimeMillis();
> > System.out.printf("loop %3d delay %4d ms%n", i, t1 - t0);
> > }
> > long tfinish = System.currentTimeMillis();
> > System.out.printf("total time = %5d ms%n", tfinish - tstart);
> > }
> > }
> >
> > ====== OSX RESULTS are 10 to 20 times larger than LINUX Results below
> =====
> >
> > sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar
> SleepLatency'
> > loop 0 delay 141 ms
> > loop 1 delay 201 ms
> > loop 2 delay 81 ms
> > loop 3 delay 14 ms
> > loop 4 delay 194 ms
> > loop 5 delay 149 ms
> > loop 6 delay 172 ms
> > loop 7 delay 203 ms
> > loop 8 delay 203 ms
> > loop 9 delay 204 ms
> > loop 10 delay 204 ms
> > loop 11 delay 204 ms
> > loop 12 delay 203 ms
> > loop 13 delay 203 ms
> > loop 14 delay 40 ms
> > loop 15 delay 206 ms
> > loop 16 delay 171 ms
> > loop 17 delay 107 ms
> > loop 18 delay 85 ms
> > loop 19 delay 204 ms
> > loop 20 delay 204 ms
> > loop 21 delay 203 ms
> > loop 22 delay 208 ms
> > loop 23 delay 200 ms
> > loop 24 delay 203 ms
> > loop 25 delay 203 ms
> > loop 26 delay 204 ms
> > loop 27 delay 204 ms
> > loop 28 delay 120 ms
> > loop 29 delay 83 ms
> > loop 30 delay 204 ms
> > loop 31 delay 203 ms
> > loop 32 delay 204 ms
> > loop 33 delay 208 ms
> > loop 34 delay 199 ms
> > loop 35 delay 204 ms
> > loop 36 delay 175 ms
> > loop 37 delay 11 ms
> > loop 38 delay 115 ms
> > loop 39 delay 205 ms
> > loop 40 delay 204 ms
> > loop 41 delay 11 ms
> > loop 42 delay 91 ms
> > loop 43 delay 202 ms
> > loop 44 delay 203 ms
> > loop 45 delay 204 ms
> > loop 46 delay 209 ms
> > loop 47 delay 112 ms
> > loop 48 delay 16 ms
> > loop 49 delay 69 ms
> > loop 50 delay 204 ms
> > loop 51 delay 18 ms
> > loop 52 delay 14 ms
> > loop 53 delay 70 ms
> > loop 54 delay 33 ms
> > loop 55 delay 184 ms
> > loop 56 delay 199 ms
> > loop 57 delay 194 ms
> > loop 58 delay 102 ms
> > loop 59 delay 102 ms
> > loop 60 delay 12 ms
> > loop 61 delay 197 ms
> > loop 62 delay 204 ms
> > loop 63 delay 204 ms
> > loop 64 delay 206 ms
> > loop 65 delay 11 ms
> > loop 66 delay 180 ms
> > loop 67 delay 202 ms
> > loop 68 delay 10 ms
> > loop 69 delay 20 ms
> > loop 70 delay 199 ms
> > loop 71 delay 179 ms
> > loop 72 delay 202 ms
> > loop 73 delay 33 ms
> > loop 74 delay 69 ms
> > loop 75 delay 14 ms
> > loop 76 delay 88 ms
> > loop 77 delay 204 ms
> > loop 78 delay 209 ms
> > loop 79 delay 198 ms
> > loop 80 delay 204 ms
> > loop 81 delay 25 ms
> > loop 82 delay 76 ms
> > loop 83 delay 102 ms
> > loop 84 delay 173 ms
> > loop 85 delay 13 ms
> > loop 86 delay 17 ms
> > loop 87 delay 14 ms
> > loop 88 delay 191 ms
> > loop 89 delay 204 ms
> > loop 90 delay 204 ms
> > loop 91 delay 102 ms
> > loop 92 delay 47 ms
> > loop 93 delay 37 ms
> > loop 94 delay 142 ms
> > loop 95 delay 202 ms
> > loop 96 delay 204 ms
> > loop 97 delay 202 ms
> > loop 98 delay 104 ms
> > loop 99 delay 80 ms
> > total time = 14193 ms
> >
> >
> > ====== LINUX RESULTS are as expected ======
> >
> > sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar
> SleepLatency'
> > Forked command at 6125
> > loop 0 delay 10 ms
> > loop 1 delay 11 ms
> > loop 2 delay 10 ms
> > loop 3 delay 10 ms
> > loop 4 delay 10 ms
> > loop 5 delay 10 ms
> > loop 6 delay 10 ms
> > loop 7 delay 10 ms
> > loop 8 delay 10 ms
> > loop 9 delay 10 ms
> > loop 10 delay 10 ms
> > loop 11 delay 10 ms
> > loop 12 delay 10 ms
> > loop 13 delay 10 ms
> > loop 14 delay 10 ms
> > loop 15 delay 10 ms
> > loop 16 delay 10 ms
> > loop 17 delay 10 ms
> > loop 18 delay 10 ms
> > loop 19 delay 11 ms
> > loop 20 delay 10 ms
> > loop 21 delay 10 ms
> > loop 22 delay 10 ms
> > loop 23 delay 10 ms
> > loop 24 delay 10 ms
> > loop 25 delay 11 ms
> > loop 26 delay 10 ms
> > loop 27 delay 10 ms
> > loop 28 delay 10 ms
> > loop 29 delay 10 ms
> > loop 30 delay 10 ms
> > loop 31 delay 10 ms
> > loop 32 delay 10 ms
> > loop 33 delay 10 ms
> > loop 34 delay 11 ms
> > loop 35 delay 10 ms
> > loop 36 delay 10 ms
> > loop 37 delay 11 ms
> > loop 38 delay 10 ms
> > loop 39 delay 10 ms
> > loop 40 delay 11 ms
> > loop 41 delay 10 ms
> > loop 42 delay 10 ms
> > loop 43 delay 11 ms
> > loop 44 delay 10 ms
> > loop 45 delay 10 ms
> > loop 46 delay 10 ms
> > loop 47 delay 10 ms
> > loop 48 delay 10 ms
> > loop 49 delay 10 ms
> > loop 50 delay 10 ms
> > loop 51 delay 10 ms
> > loop 52 delay 11 ms
> > loop 53 delay 10 ms
> > loop 54 delay 10 ms
> > loop 55 delay 10 ms
> > loop 56 delay 10 ms
> > loop 57 delay 10 ms
> > loop 58 delay 10 ms
> > loop 59 delay 10 ms
> > loop 60 delay 10 ms
> > loop 61 delay 10 ms
> > loop 62 delay 11 ms
> > loop 63 delay 10 ms
> > loop 64 delay 10 ms
> > loop 65 delay 11 ms
> > loop 66 delay 10 ms
> > loop 67 delay 10 ms
> > loop 68 delay 10 ms
> > loop 69 delay 10 ms
> > loop 70 delay 10 ms
> > loop 71 delay 10 ms
> > loop 72 delay 11 ms
> > loop 73 delay 10 ms
> > loop 74 delay 10 ms
> > loop 75 delay 10 ms
> > loop 76 delay 11 ms
> > loop 77 delay 10 ms
> > loop 78 delay 10 ms
> > loop 79 delay 10 ms
> > loop 80 delay 11 ms
> > loop 81 delay 10 ms
> > loop 82 delay 10 ms
> > loop 83 delay 10 ms
> > loop 84 delay 10 ms
> > loop 85 delay 10 ms
> > loop 86 delay 10 ms
> > loop 87 delay 10 ms
> > loop 88 delay 10 ms
> > loop 89 delay 10 ms
> > loop 90 delay 10 ms
> > loop 91 delay 10 ms
> > loop 92 delay 10 ms
> > loop 93 delay 10 ms
> > loop 94 delay 10 ms
> > loop 95 delay 10 ms
> > loop 96 delay 10 ms
> > loop 97 delay 10 ms
> > loop 98 delay 10 ms
> > loop 99 delay 10 ms
> > total time = 1035 ms
> >
> >
> >
> >
> >
> >
> > --
> > Best Regards,
> > Haosdent Huang
>
>
--
Best Regards,
Haosdent Huang
Re: OSX 10.10.5 and mesos 0.28.1 -- 10 to 20 X difference in sleep()
method compared to non mesos
Posted by "DiGiorgio, Mr. Rinaldo S." <rd...@pace.edu>.
Thanks James and Haosdent,
I built my own version of mesos 1.0 and installed it on 10.11.5 and I am getting the same results as 10.10.5 with 0.28.1
Do either of you remember what you may have set on your OSX machines to default some of the desktop settings that may be causing this issue?
We are already turning off many desktop features since they are not relevant for our use case.
Received SUBSCRIBED event
Subscribed executor on dhcp-adc-twvpn-3-vpnpool-10-154-101-79.vpn.oracle.com
Received LAUNCH event
Starting task test-sleep
sh -c 'cd /tmp && java SleepLatency'
Forked command at 2907
loop 0 delay 35 ms
loop 1 delay 108 ms
loop 2 delay 104 ms
loop 3 delay 57 ms
loop 4 delay 104 ms
loop 5 delay 93 ms
loop 6 delay 12 ms
loop 7 delay 17 ms
loop 8 delay 105 ms
loop 9 delay 109 ms
> On Jun 4, 2016, at 05:07, haosdent <ha...@gmail.com> wrote:
>
> Hi, Rinaldo. I test your problem in my local Mesos (run in my mac). It looks normal in my side. I started it by
>
> ```
> mesos-execute --master="localhost:5050" --name="test-sleep" --command="cd /tmp && java SleepLatency"
> ```
>
> ```
> Registered executor on localhost
> Starting task test-sleep
> sh -c 'cd /tmp && java SleepLatency'
> Forked command at 42480
> loop 0 delay 11 ms
> loop 1 delay 12 ms
> loop 2 delay 11 ms
> loop 3 delay 13 ms
> loop 4 delay 12 ms
> loop 5 delay 12 ms
> loop 6 delay 12 ms
> loop 7 delay 12 ms
> loop 8 delay 12 ms
> loop 9 delay 11 ms
> loop 10 delay 12 ms
> loop 11 delay 13 ms
> loop 12 delay 11 ms
> loop 13 delay 11 ms
> loop 14 delay 12 ms
> loop 15 delay 12 ms
> loop 16 delay 13 ms
> loop 17 delay 12 ms
> loop 18 delay 11 ms
> loop 19 delay 12 ms
> loop 20 delay 12 ms
> loop 21 delay 11 ms
> loop 22 delay 12 ms
> loop 23 delay 11 ms
> loop 24 delay 12 ms
> loop 25 delay 12 ms
> loop 26 delay 12 ms
> loop 27 delay 12 ms
> loop 28 delay 13 ms
> loop 29 delay 12 ms
> loop 30 delay 12 ms
> loop 31 delay 11 ms
> loop 32 delay 11 ms
> loop 33 delay 11 ms
> loop 34 delay 13 ms
> loop 35 delay 10 ms
> loop 36 delay 12 ms
> loop 37 delay 11 ms
> loop 38 delay 12 ms
> loop 39 delay 12 ms
> loop 40 delay 12 ms
> loop 41 delay 12 ms
> loop 42 delay 12 ms
> loop 43 delay 11 ms
> loop 44 delay 12 ms
> loop 45 delay 12 ms
> loop 46 delay 12 ms
> loop 47 delay 12 ms
> loop 48 delay 12 ms
> loop 49 delay 12 ms
> loop 50 delay 12 ms
> loop 51 delay 12 ms
> loop 52 delay 12 ms
> loop 53 delay 13 ms
> loop 54 delay 11 ms
> loop 55 delay 12 ms
> loop 56 delay 12 ms
> loop 57 delay 12 ms
> loop 58 delay 12 ms
> loop 59 delay 11 ms
> loop 60 delay 11 ms
> loop 61 delay 11 ms
> loop 62 delay 11 ms
> loop 63 delay 12 ms
> loop 64 delay 12 ms
> loop 65 delay 12 ms
> loop 66 delay 12 ms
> loop 67 delay 12 ms
> loop 68 delay 11 ms
> loop 69 delay 13 ms
> loop 70 delay 12 ms
> loop 71 delay 10 ms
> loop 72 delay 12 ms
> loop 73 delay 10 ms
> loop 74 delay 11 ms
> loop 75 delay 12 ms
> loop 76 delay 10 ms
> loop 77 delay 11 ms
> loop 78 delay 12 ms
> loop 79 delay 10 ms
> loop 80 delay 12 ms
> loop 81 delay 12 ms
> loop 82 delay 11 ms
> loop 83 delay 11 ms
> loop 84 delay 12 ms
> loop 85 delay 11 ms
> loop 86 delay 12 ms
> loop 87 delay 12 ms
> loop 88 delay 12 ms
> loop 89 delay 11 ms
> loop 90 delay 12 ms
> loop 91 delay 12 ms
> loop 92 delay 13 ms
> loop 93 delay 12 ms
> loop 94 delay 11 ms
> loop 95 delay 10 ms
> loop 96 delay 12 ms
> loop 97 delay 11 ms
> loop 98 delay 12 ms
> loop 99 delay 12 ms
> total time = 1215 ms
> Command exited with status 0 (pid: 42480)
> ```
>
> On Sat, Jun 4, 2016 at 4:11 AM, DiGiorgio, Mr. Rinaldo S. <rd...@pace.edu> wrote:
> Hi,
>
> We are running the following Java application and we are getting unreasonable deltas in the actual amount time slept. On linux the results are as expected 10, 11, 12 but mostly 10ms. Can you suggest any changes we can make or is this a known issue or a new issue to be investigated? When we run the same code on the same instance of OSX 10.10.5 without mesos -- we get the expected results.
>
>
> public class SleepLatency {
> static final int COUNT = 100;
> static final long DELAY = 10L;
>
> public static void main(String[] args) throws Exception {
> long tstart = System.currentTimeMillis();
> for (int i = 0; i < COUNT; i++) {
> long t0 = System.currentTimeMillis();
> Thread.sleep(DELAY);
> long t1 = System.currentTimeMillis();
> System.out.printf("loop %3d delay %4d ms%n", i, t1 - t0);
> }
> long tfinish = System.currentTimeMillis();
> System.out.printf("total time = %5d ms%n", tfinish - tstart);
> }
> }
>
> ====== OSX RESULTS are 10 to 20 times larger than LINUX Results below =====
>
> sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar SleepLatency'
> loop 0 delay 141 ms
> loop 1 delay 201 ms
> loop 2 delay 81 ms
> loop 3 delay 14 ms
> loop 4 delay 194 ms
> loop 5 delay 149 ms
> loop 6 delay 172 ms
> loop 7 delay 203 ms
> loop 8 delay 203 ms
> loop 9 delay 204 ms
> loop 10 delay 204 ms
> loop 11 delay 204 ms
> loop 12 delay 203 ms
> loop 13 delay 203 ms
> loop 14 delay 40 ms
> loop 15 delay 206 ms
> loop 16 delay 171 ms
> loop 17 delay 107 ms
> loop 18 delay 85 ms
> loop 19 delay 204 ms
> loop 20 delay 204 ms
> loop 21 delay 203 ms
> loop 22 delay 208 ms
> loop 23 delay 200 ms
> loop 24 delay 203 ms
> loop 25 delay 203 ms
> loop 26 delay 204 ms
> loop 27 delay 204 ms
> loop 28 delay 120 ms
> loop 29 delay 83 ms
> loop 30 delay 204 ms
> loop 31 delay 203 ms
> loop 32 delay 204 ms
> loop 33 delay 208 ms
> loop 34 delay 199 ms
> loop 35 delay 204 ms
> loop 36 delay 175 ms
> loop 37 delay 11 ms
> loop 38 delay 115 ms
> loop 39 delay 205 ms
> loop 40 delay 204 ms
> loop 41 delay 11 ms
> loop 42 delay 91 ms
> loop 43 delay 202 ms
> loop 44 delay 203 ms
> loop 45 delay 204 ms
> loop 46 delay 209 ms
> loop 47 delay 112 ms
> loop 48 delay 16 ms
> loop 49 delay 69 ms
> loop 50 delay 204 ms
> loop 51 delay 18 ms
> loop 52 delay 14 ms
> loop 53 delay 70 ms
> loop 54 delay 33 ms
> loop 55 delay 184 ms
> loop 56 delay 199 ms
> loop 57 delay 194 ms
> loop 58 delay 102 ms
> loop 59 delay 102 ms
> loop 60 delay 12 ms
> loop 61 delay 197 ms
> loop 62 delay 204 ms
> loop 63 delay 204 ms
> loop 64 delay 206 ms
> loop 65 delay 11 ms
> loop 66 delay 180 ms
> loop 67 delay 202 ms
> loop 68 delay 10 ms
> loop 69 delay 20 ms
> loop 70 delay 199 ms
> loop 71 delay 179 ms
> loop 72 delay 202 ms
> loop 73 delay 33 ms
> loop 74 delay 69 ms
> loop 75 delay 14 ms
> loop 76 delay 88 ms
> loop 77 delay 204 ms
> loop 78 delay 209 ms
> loop 79 delay 198 ms
> loop 80 delay 204 ms
> loop 81 delay 25 ms
> loop 82 delay 76 ms
> loop 83 delay 102 ms
> loop 84 delay 173 ms
> loop 85 delay 13 ms
> loop 86 delay 17 ms
> loop 87 delay 14 ms
> loop 88 delay 191 ms
> loop 89 delay 204 ms
> loop 90 delay 204 ms
> loop 91 delay 102 ms
> loop 92 delay 47 ms
> loop 93 delay 37 ms
> loop 94 delay 142 ms
> loop 95 delay 202 ms
> loop 96 delay 204 ms
> loop 97 delay 202 ms
> loop 98 delay 104 ms
> loop 99 delay 80 ms
> total time = 14193 ms
>
>
> ====== LINUX RESULTS are as expected ======
>
> sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar SleepLatency'
> Forked command at 6125
> loop 0 delay 10 ms
> loop 1 delay 11 ms
> loop 2 delay 10 ms
> loop 3 delay 10 ms
> loop 4 delay 10 ms
> loop 5 delay 10 ms
> loop 6 delay 10 ms
> loop 7 delay 10 ms
> loop 8 delay 10 ms
> loop 9 delay 10 ms
> loop 10 delay 10 ms
> loop 11 delay 10 ms
> loop 12 delay 10 ms
> loop 13 delay 10 ms
> loop 14 delay 10 ms
> loop 15 delay 10 ms
> loop 16 delay 10 ms
> loop 17 delay 10 ms
> loop 18 delay 10 ms
> loop 19 delay 11 ms
> loop 20 delay 10 ms
> loop 21 delay 10 ms
> loop 22 delay 10 ms
> loop 23 delay 10 ms
> loop 24 delay 10 ms
> loop 25 delay 11 ms
> loop 26 delay 10 ms
> loop 27 delay 10 ms
> loop 28 delay 10 ms
> loop 29 delay 10 ms
> loop 30 delay 10 ms
> loop 31 delay 10 ms
> loop 32 delay 10 ms
> loop 33 delay 10 ms
> loop 34 delay 11 ms
> loop 35 delay 10 ms
> loop 36 delay 10 ms
> loop 37 delay 11 ms
> loop 38 delay 10 ms
> loop 39 delay 10 ms
> loop 40 delay 11 ms
> loop 41 delay 10 ms
> loop 42 delay 10 ms
> loop 43 delay 11 ms
> loop 44 delay 10 ms
> loop 45 delay 10 ms
> loop 46 delay 10 ms
> loop 47 delay 10 ms
> loop 48 delay 10 ms
> loop 49 delay 10 ms
> loop 50 delay 10 ms
> loop 51 delay 10 ms
> loop 52 delay 11 ms
> loop 53 delay 10 ms
> loop 54 delay 10 ms
> loop 55 delay 10 ms
> loop 56 delay 10 ms
> loop 57 delay 10 ms
> loop 58 delay 10 ms
> loop 59 delay 10 ms
> loop 60 delay 10 ms
> loop 61 delay 10 ms
> loop 62 delay 11 ms
> loop 63 delay 10 ms
> loop 64 delay 10 ms
> loop 65 delay 11 ms
> loop 66 delay 10 ms
> loop 67 delay 10 ms
> loop 68 delay 10 ms
> loop 69 delay 10 ms
> loop 70 delay 10 ms
> loop 71 delay 10 ms
> loop 72 delay 11 ms
> loop 73 delay 10 ms
> loop 74 delay 10 ms
> loop 75 delay 10 ms
> loop 76 delay 11 ms
> loop 77 delay 10 ms
> loop 78 delay 10 ms
> loop 79 delay 10 ms
> loop 80 delay 11 ms
> loop 81 delay 10 ms
> loop 82 delay 10 ms
> loop 83 delay 10 ms
> loop 84 delay 10 ms
> loop 85 delay 10 ms
> loop 86 delay 10 ms
> loop 87 delay 10 ms
> loop 88 delay 10 ms
> loop 89 delay 10 ms
> loop 90 delay 10 ms
> loop 91 delay 10 ms
> loop 92 delay 10 ms
> loop 93 delay 10 ms
> loop 94 delay 10 ms
> loop 95 delay 10 ms
> loop 96 delay 10 ms
> loop 97 delay 10 ms
> loop 98 delay 10 ms
> loop 99 delay 10 ms
> total time = 1035 ms
>
>
>
>
>
>
> --
> Best Regards,
> Haosdent Huang
Re: OSX 10.10.5 and mesos 0.28.1 -- 10 to 20 X difference in sleep()
method compared to non mesos
Posted by haosdent <ha...@gmail.com>.
Hi, Rinaldo. I test your problem in my local Mesos (run in my mac). It
looks normal in my side. I started it by
```
mesos-execute --master="localhost:5050" --name="test-sleep" --command="cd
/tmp && java SleepLatency"
```
```
Registered executor on localhost
Starting task test-sleep
sh -c 'cd /tmp && java SleepLatency'
Forked command at 42480
loop 0 delay 11 ms
loop 1 delay 12 ms
loop 2 delay 11 ms
loop 3 delay 13 ms
loop 4 delay 12 ms
loop 5 delay 12 ms
loop 6 delay 12 ms
loop 7 delay 12 ms
loop 8 delay 12 ms
loop 9 delay 11 ms
loop 10 delay 12 ms
loop 11 delay 13 ms
loop 12 delay 11 ms
loop 13 delay 11 ms
loop 14 delay 12 ms
loop 15 delay 12 ms
loop 16 delay 13 ms
loop 17 delay 12 ms
loop 18 delay 11 ms
loop 19 delay 12 ms
loop 20 delay 12 ms
loop 21 delay 11 ms
loop 22 delay 12 ms
loop 23 delay 11 ms
loop 24 delay 12 ms
loop 25 delay 12 ms
loop 26 delay 12 ms
loop 27 delay 12 ms
loop 28 delay 13 ms
loop 29 delay 12 ms
loop 30 delay 12 ms
loop 31 delay 11 ms
loop 32 delay 11 ms
loop 33 delay 11 ms
loop 34 delay 13 ms
loop 35 delay 10 ms
loop 36 delay 12 ms
loop 37 delay 11 ms
loop 38 delay 12 ms
loop 39 delay 12 ms
loop 40 delay 12 ms
loop 41 delay 12 ms
loop 42 delay 12 ms
loop 43 delay 11 ms
loop 44 delay 12 ms
loop 45 delay 12 ms
loop 46 delay 12 ms
loop 47 delay 12 ms
loop 48 delay 12 ms
loop 49 delay 12 ms
loop 50 delay 12 ms
loop 51 delay 12 ms
loop 52 delay 12 ms
loop 53 delay 13 ms
loop 54 delay 11 ms
loop 55 delay 12 ms
loop 56 delay 12 ms
loop 57 delay 12 ms
loop 58 delay 12 ms
loop 59 delay 11 ms
loop 60 delay 11 ms
loop 61 delay 11 ms
loop 62 delay 11 ms
loop 63 delay 12 ms
loop 64 delay 12 ms
loop 65 delay 12 ms
loop 66 delay 12 ms
loop 67 delay 12 ms
loop 68 delay 11 ms
loop 69 delay 13 ms
loop 70 delay 12 ms
loop 71 delay 10 ms
loop 72 delay 12 ms
loop 73 delay 10 ms
loop 74 delay 11 ms
loop 75 delay 12 ms
loop 76 delay 10 ms
loop 77 delay 11 ms
loop 78 delay 12 ms
loop 79 delay 10 ms
loop 80 delay 12 ms
loop 81 delay 12 ms
loop 82 delay 11 ms
loop 83 delay 11 ms
loop 84 delay 12 ms
loop 85 delay 11 ms
loop 86 delay 12 ms
loop 87 delay 12 ms
loop 88 delay 12 ms
loop 89 delay 11 ms
loop 90 delay 12 ms
loop 91 delay 12 ms
loop 92 delay 13 ms
loop 93 delay 12 ms
loop 94 delay 11 ms
loop 95 delay 10 ms
loop 96 delay 12 ms
loop 97 delay 11 ms
loop 98 delay 12 ms
loop 99 delay 12 ms
total time = 1215 ms
Command exited with status 0 (pid: 42480)
```
On Sat, Jun 4, 2016 at 4:11 AM, DiGiorgio, Mr. Rinaldo S. <
rdigiorgio@pace.edu> wrote:
> Hi,
>
> We are running the following Java application and we are getting
> unreasonable deltas in the actual amount time slept. On linux the results
> are as expected 10, 11, 12 but mostly 10ms. Can you suggest any changes we
> can make or is this a known issue or a new issue to be investigated? When
> we run the same code on the same instance of OSX 10.10.5 without mesos --
> we get the expected results.
>
>
> public class SleepLatency {
> static final int COUNT = 100;
> static final long DELAY = 10L;
>
> public static void main(String[] args) throws Exception {
> long tstart = System.currentTimeMillis();
> for (int i = 0; i < COUNT; i++) {
> long t0 = System.currentTimeMillis();
> Thread.sleep(DELAY);
> long t1 = System.currentTimeMillis();
> System.out.printf("loop %3d delay %4d ms%n", i, t1 - t0);
> }
> long tfinish = System.currentTimeMillis();
> System.out.printf("total time = %5d ms%n", tfinish - tstart);
> }
> }
>
> ====== OSX RESULTS are 10 to 20 times larger than LINUX Results below
> =====
>
> sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar
> SleepLatency'
> loop 0 delay 141 ms
> loop 1 delay 201 ms
> loop 2 delay 81 ms
> loop 3 delay 14 ms
> loop 4 delay 194 ms
> loop 5 delay 149 ms
> loop 6 delay 172 ms
> loop 7 delay 203 ms
> loop 8 delay 203 ms
> loop 9 delay 204 ms
> loop 10 delay 204 ms
> loop 11 delay 204 ms
> loop 12 delay 203 ms
> loop 13 delay 203 ms
> loop 14 delay 40 ms
> loop 15 delay 206 ms
> loop 16 delay 171 ms
> loop 17 delay 107 ms
> loop 18 delay 85 ms
> loop 19 delay 204 ms
> loop 20 delay 204 ms
> loop 21 delay 203 ms
> loop 22 delay 208 ms
> loop 23 delay 200 ms
> loop 24 delay 203 ms
> loop 25 delay 203 ms
> loop 26 delay 204 ms
> loop 27 delay 204 ms
> loop 28 delay 120 ms
> loop 29 delay 83 ms
> loop 30 delay 204 ms
> loop 31 delay 203 ms
> loop 32 delay 204 ms
> loop 33 delay 208 ms
> loop 34 delay 199 ms
> loop 35 delay 204 ms
> loop 36 delay 175 ms
> loop 37 delay 11 ms
> loop 38 delay 115 ms
> loop 39 delay 205 ms
> loop 40 delay 204 ms
> loop 41 delay 11 ms
> loop 42 delay 91 ms
> loop 43 delay 202 ms
> loop 44 delay 203 ms
> loop 45 delay 204 ms
> loop 46 delay 209 ms
> loop 47 delay 112 ms
> loop 48 delay 16 ms
> loop 49 delay 69 ms
> loop 50 delay 204 ms
> loop 51 delay 18 ms
> loop 52 delay 14 ms
> loop 53 delay 70 ms
> loop 54 delay 33 ms
> loop 55 delay 184 ms
> loop 56 delay 199 ms
> loop 57 delay 194 ms
> loop 58 delay 102 ms
> loop 59 delay 102 ms
> loop 60 delay 12 ms
> loop 61 delay 197 ms
> loop 62 delay 204 ms
> loop 63 delay 204 ms
> loop 64 delay 206 ms
> loop 65 delay 11 ms
> loop 66 delay 180 ms
> loop 67 delay 202 ms
> loop 68 delay 10 ms
> loop 69 delay 20 ms
> loop 70 delay 199 ms
> loop 71 delay 179 ms
> loop 72 delay 202 ms
> loop 73 delay 33 ms
> loop 74 delay 69 ms
> loop 75 delay 14 ms
> loop 76 delay 88 ms
> loop 77 delay 204 ms
> loop 78 delay 209 ms
> loop 79 delay 198 ms
> loop 80 delay 204 ms
> loop 81 delay 25 ms
> loop 82 delay 76 ms
> loop 83 delay 102 ms
> loop 84 delay 173 ms
> loop 85 delay 13 ms
> loop 86 delay 17 ms
> loop 87 delay 14 ms
> loop 88 delay 191 ms
> loop 89 delay 204 ms
> loop 90 delay 204 ms
> loop 91 delay 102 ms
> loop 92 delay 47 ms
> loop 93 delay 37 ms
> loop 94 delay 142 ms
> loop 95 delay 202 ms
> loop 96 delay 204 ms
> loop 97 delay 202 ms
> loop 98 delay 104 ms
> loop 99 delay 80 ms
> total time = 14193 ms
>
>
> ====== LINUX RESULTS are as expected ======
>
> sh -c '/opt/jdk/bin/java -cp ./mach5-mesos-support-1.0-SNAPSHOT.jar
> SleepLatency'
> Forked command at 6125
> loop 0 delay 10 ms
> loop 1 delay 11 ms
> loop 2 delay 10 ms
> loop 3 delay 10 ms
> loop 4 delay 10 ms
> loop 5 delay 10 ms
> loop 6 delay 10 ms
> loop 7 delay 10 ms
> loop 8 delay 10 ms
> loop 9 delay 10 ms
> loop 10 delay 10 ms
> loop 11 delay 10 ms
> loop 12 delay 10 ms
> loop 13 delay 10 ms
> loop 14 delay 10 ms
> loop 15 delay 10 ms
> loop 16 delay 10 ms
> loop 17 delay 10 ms
> loop 18 delay 10 ms
> loop 19 delay 11 ms
> loop 20 delay 10 ms
> loop 21 delay 10 ms
> loop 22 delay 10 ms
> loop 23 delay 10 ms
> loop 24 delay 10 ms
> loop 25 delay 11 ms
> loop 26 delay 10 ms
> loop 27 delay 10 ms
> loop 28 delay 10 ms
> loop 29 delay 10 ms
> loop 30 delay 10 ms
> loop 31 delay 10 ms
> loop 32 delay 10 ms
> loop 33 delay 10 ms
> loop 34 delay 11 ms
> loop 35 delay 10 ms
> loop 36 delay 10 ms
> loop 37 delay 11 ms
> loop 38 delay 10 ms
> loop 39 delay 10 ms
> loop 40 delay 11 ms
> loop 41 delay 10 ms
> loop 42 delay 10 ms
> loop 43 delay 11 ms
> loop 44 delay 10 ms
> loop 45 delay 10 ms
> loop 46 delay 10 ms
> loop 47 delay 10 ms
> loop 48 delay 10 ms
> loop 49 delay 10 ms
> loop 50 delay 10 ms
> loop 51 delay 10 ms
> loop 52 delay 11 ms
> loop 53 delay 10 ms
> loop 54 delay 10 ms
> loop 55 delay 10 ms
> loop 56 delay 10 ms
> loop 57 delay 10 ms
> loop 58 delay 10 ms
> loop 59 delay 10 ms
> loop 60 delay 10 ms
> loop 61 delay 10 ms
> loop 62 delay 11 ms
> loop 63 delay 10 ms
> loop 64 delay 10 ms
> loop 65 delay 11 ms
> loop 66 delay 10 ms
> loop 67 delay 10 ms
> loop 68 delay 10 ms
> loop 69 delay 10 ms
> loop 70 delay 10 ms
> loop 71 delay 10 ms
> loop 72 delay 11 ms
> loop 73 delay 10 ms
> loop 74 delay 10 ms
> loop 75 delay 10 ms
> loop 76 delay 11 ms
> loop 77 delay 10 ms
> loop 78 delay 10 ms
> loop 79 delay 10 ms
> loop 80 delay 11 ms
> loop 81 delay 10 ms
> loop 82 delay 10 ms
> loop 83 delay 10 ms
> loop 84 delay 10 ms
> loop 85 delay 10 ms
> loop 86 delay 10 ms
> loop 87 delay 10 ms
> loop 88 delay 10 ms
> loop 89 delay 10 ms
> loop 90 delay 10 ms
> loop 91 delay 10 ms
> loop 92 delay 10 ms
> loop 93 delay 10 ms
> loop 94 delay 10 ms
> loop 95 delay 10 ms
> loop 96 delay 10 ms
> loop 97 delay 10 ms
> loop 98 delay 10 ms
> loop 99 delay 10 ms
> total time = 1035 ms
>
>
>
>
--
Best Regards,
Haosdent Huang