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Posted to user@jmeter.apache.org by nirmal kumar <ni...@gmail.com> on 2009/12/29 20:36:46 UTC
Clarification for TCPSampler - Throughput
Hi
I have been running Jmeter for perfomace testing of an xmpp server. I
used to TCPSampler to send transaction messages. I have observed the
following behaviour :
a) Thread Pool Increase:
To begin with i have tried to send messages using single thread
and measure the throughput ot be 10Messages per second. But as I
started to increase the number of thread still my throughput remain
the same. Can some explain me the cause for such behaviour.
I have measure the CPU, I/0 utilization too.. CPU - 0.4% and I/0=>
very minimal.
hence inorder to increase the msg/sec i tried installing more jmeter
and I could see a increase the messages sent.
For 1 Jmeter ==> 10Msg/sec
For 3 Jmeter ==> 14.26 Msg/Sec
For 5 Jemter ==> 23.4 Msg/Sec
I would like to have a 300msg/sec. I don't want have too many
instances of jmeter machines.
Can some one help me in achieving it.
Thanks,
Nirmal
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Re: Clarification for TCPSampler - Throughput
Posted by nirmal kumar <ni...@gmail.com>.
Hey Sebb,
I have found the error. I had a counter which closed the connection
after 10th iteration. hence it was failing from 11th thread.
Thanks,
Nirmal
On Wed, Dec 30, 2009 at 12:25 AM, nirmal kumar <ni...@gmail.com> wrote:
> Hey thanks for your response...
>
> After digging through the logs I could find the cause for such
> behavior... When ever i try to turn the thread pool to more than 10
> (say 11 thread ) I get a socket broken exception
> "2009/12/30 00:00:39 WARN -
> jmeter.protocol.tcp.sampler.TCPClientImpl: Write error
> java.net.SocketException: Software caused connection abort: socket
> write error
> at java.net.SocketOutputStream.socketWrite0(Native Method)
> at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
> at java.net.SocketOutputStream.write(SocketOutputStream.java:124)
> at org.apache.jmeter.protocol.tcp.sampler.TCPClientImpl.write(TCPClientImpl.java:69)
> at org.apache.jmeter.protocol.tcp.sampler.TCPSampler.sample(TCPSampler.java:305)
> at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:346)
> at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:243)
> at java.lang.Thread.run(Thread.java:619)
>
> 2009/12/30 00:00:39 WARN - jmeter.protocol.tcp.sampler.TCPClientImpl:
> Write error java.net.SocketException: Software caused connection
> abort: socket write error
> at java.net.SocketOutputStream.socketWrite0(Native Method)
> at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
> at java.net.SocketOutputStream.write(SocketOutputStream.java:124)
> at org.apache.jmeter.protocol.tcp.sampler.TCPClientImpl.write(TCPClientImpl.java:69)
> at org.apache.jmeter.protocol.tcp.sampler.TCPSampler.sample(TCPSampler.java:305)
> at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:346)
> at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:243)
> at java.lang.Thread.run(Thread.java:619)
>
> Hope the above exception explains the behavior for more jmeter more
> response. But now this leads a new problem.. After some goggling i
> found a reference
>
> http://old.nabble.com/TCP-Sampler-td3524656.html
>
> I have tried to set the tcp.eolByte=136 .. But still I get the same error ..
>
> Thanks,
> Nirmal
>
>
> On Tue, Dec 29, 2009 at 9:19 PM, sebb <se...@gmail.com> wrote:
>> On 29/12/2009, nirmal kumar <ni...@gmail.com> wrote:
>>> Hi
>>>
>>> I have been running Jmeter for perfomace testing of an xmpp server. I
>>> used to TCPSampler to send transaction messages. I have observed the
>>> following behaviour :
>>>
>>> a) Thread Pool Increase:
>>> To begin with i have tried to send messages using single thread
>>> and measure the throughput ot be 10Messages per second. But as I
>>> started to increase the number of thread still my throughput remain
>>> the same. Can some explain me the cause for such behaviour.
>>
>> Perhaps the server cannot handle any more throughput.
>>
>>> I have measure the CPU, I/0 utilization too.. CPU - 0.4% and I/0=>
>>> very minimal.
>>>
>>> hence inorder to increase the msg/sec i tried installing more jmeter
>>> and I could see a increase the messages sent.
>>> For 1 Jmeter ==> 10Msg/sec
>>> For 3 Jmeter ==> 14.26 Msg/Sec
>>> For 5 Jemter ==> 23.4 Msg/Sec
>>
>> How many threads for each JMeter? How long does each run last (approx)?
>>
>> It should not be necessary to use multiple instances of JMeter in most cases.
>>
>>> I would like to have a 300msg/sec. I don't want have too many
>>> instances of jmeter machines.
>>> Can some one help me in achieving it.
>>
>> It's possible to achieve much higher throughput with a single JMeter
>> instance, so there must be something wrong here.
>>
>> How long do the TCP samples take? Do they complete successfully?
>>
>> The TCP Sampler is tricky to configure correctly, because there are
>> lots of options - are you sure it has been set up correctly?
>>
>>> Thanks,
>>> Nirmal
>>>
>>> ---------------------------------------------------------------------
>>> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
>>> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>>>
>>>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
>> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>>
>>
>
>
>
> --
> Regards
> Nirmal
>
--
Regards
Nirmal
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Re: Clarification for TCPSampler - Throughput
Posted by nirmal kumar <ni...@gmail.com>.
Hey thanks for your response...
After digging through the logs I could find the cause for such
behavior... When ever i try to turn the thread pool to more than 10
(say 11 thread ) I get a socket broken exception
"2009/12/30 00:00:39 WARN -
jmeter.protocol.tcp.sampler.TCPClientImpl: Write error
java.net.SocketException: Software caused connection abort: socket
write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:124)
at org.apache.jmeter.protocol.tcp.sampler.TCPClientImpl.write(TCPClientImpl.java:69)
at org.apache.jmeter.protocol.tcp.sampler.TCPSampler.sample(TCPSampler.java:305)
at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:346)
at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:243)
at java.lang.Thread.run(Thread.java:619)
2009/12/30 00:00:39 WARN - jmeter.protocol.tcp.sampler.TCPClientImpl:
Write error java.net.SocketException: Software caused connection
abort: socket write error
at java.net.SocketOutputStream.socketWrite0(Native Method)
at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:92)
at java.net.SocketOutputStream.write(SocketOutputStream.java:124)
at org.apache.jmeter.protocol.tcp.sampler.TCPClientImpl.write(TCPClientImpl.java:69)
at org.apache.jmeter.protocol.tcp.sampler.TCPSampler.sample(TCPSampler.java:305)
at org.apache.jmeter.threads.JMeterThread.process_sampler(JMeterThread.java:346)
at org.apache.jmeter.threads.JMeterThread.run(JMeterThread.java:243)
at java.lang.Thread.run(Thread.java:619)
Hope the above exception explains the behavior for more jmeter more
response. But now this leads a new problem.. After some goggling i
found a reference
http://old.nabble.com/TCP-Sampler-td3524656.html
I have tried to set the tcp.eolByte=136 .. But still I get the same error ..
Thanks,
Nirmal
On Tue, Dec 29, 2009 at 9:19 PM, sebb <se...@gmail.com> wrote:
> On 29/12/2009, nirmal kumar <ni...@gmail.com> wrote:
>> Hi
>>
>> I have been running Jmeter for perfomace testing of an xmpp server. I
>> used to TCPSampler to send transaction messages. I have observed the
>> following behaviour :
>>
>> a) Thread Pool Increase:
>> To begin with i have tried to send messages using single thread
>> and measure the throughput ot be 10Messages per second. But as I
>> started to increase the number of thread still my throughput remain
>> the same. Can some explain me the cause for such behaviour.
>
> Perhaps the server cannot handle any more throughput.
>
>> I have measure the CPU, I/0 utilization too.. CPU - 0.4% and I/0=>
>> very minimal.
>>
>> hence inorder to increase the msg/sec i tried installing more jmeter
>> and I could see a increase the messages sent.
>> For 1 Jmeter ==> 10Msg/sec
>> For 3 Jmeter ==> 14.26 Msg/Sec
>> For 5 Jemter ==> 23.4 Msg/Sec
>
> How many threads for each JMeter? How long does each run last (approx)?
>
> It should not be necessary to use multiple instances of JMeter in most cases.
>
>> I would like to have a 300msg/sec. I don't want have too many
>> instances of jmeter machines.
>> Can some one help me in achieving it.
>
> It's possible to achieve much higher throughput with a single JMeter
> instance, so there must be something wrong here.
>
> How long do the TCP samples take? Do they complete successfully?
>
> The TCP Sampler is tricky to configure correctly, because there are
> lots of options - are you sure it has been set up correctly?
>
>> Thanks,
>> Nirmal
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
>> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>>
>>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>
>
--
Regards
Nirmal
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Re: Clarification for TCPSampler - Throughput
Posted by kirk <ki...@kodewerk.com>.
sebb wrote:
> On 29/12/2009, nirmal kumar <ni...@gmail.com> wrote:
>
>> Hi
>>
>> I have been running Jmeter for perfomace testing of an xmpp server. I
>> used to TCPSampler to send transaction messages. I have observed the
>> following behaviour :
>>
>> a) Thread Pool Increase:
>> To begin with i have tried to send messages using single thread
>> and measure the throughput ot be 10Messages per second. But as I
>> started to increase the number of thread still my throughput remain
>> the same. Can some explain me the cause for such behaviour.
>>
>
> Perhaps the server cannot handle any more throughput.
>
check server thread/connection pool size.
Kirk
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Re: Clarification for TCPSampler - Throughput
Posted by sebb <se...@gmail.com>.
On 29/12/2009, nirmal kumar <ni...@gmail.com> wrote:
> Hi
>
> I have been running Jmeter for perfomace testing of an xmpp server. I
> used to TCPSampler to send transaction messages. I have observed the
> following behaviour :
>
> a) Thread Pool Increase:
> To begin with i have tried to send messages using single thread
> and measure the throughput ot be 10Messages per second. But as I
> started to increase the number of thread still my throughput remain
> the same. Can some explain me the cause for such behaviour.
Perhaps the server cannot handle any more throughput.
> I have measure the CPU, I/0 utilization too.. CPU - 0.4% and I/0=>
> very minimal.
>
> hence inorder to increase the msg/sec i tried installing more jmeter
> and I could see a increase the messages sent.
> For 1 Jmeter ==> 10Msg/sec
> For 3 Jmeter ==> 14.26 Msg/Sec
> For 5 Jemter ==> 23.4 Msg/Sec
How many threads for each JMeter? How long does each run last (approx)?
It should not be necessary to use multiple instances of JMeter in most cases.
> I would like to have a 300msg/sec. I don't want have too many
> instances of jmeter machines.
> Can some one help me in achieving it.
It's possible to achieve much higher throughput with a single JMeter
instance, so there must be something wrong here.
How long do the TCP samples take? Do they complete successfully?
The TCP Sampler is tricky to configure correctly, because there are
lots of options - are you sure it has been set up correctly?
> Thanks,
> Nirmal
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
> For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
>
>
---------------------------------------------------------------------
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