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Posted to user@jmeter.apache.org by howard chen <ho...@gmail.com> on 2008/09/17 12:40:18 UTC
HTTP Extreme Load Testing
Hi,
I am using JMeter to test my CGI program. (HTTPSampler)
I want to simulate large amount of user load, so I set:
num_threads = 2000
loops = 1000
During the test, I check using the `top` command:
=====================
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
19099 root 25 0 578m 149m 10m S 72.5 3.7 0:20.50 java
=====================
1. Seems JMeter is not using all my resources to do the testing? (i.e.
some portion of memory does into virtual)
2. I am using the command: jakarta-jmeter-2.3.2/bin/jmeter -n -t
test.jmx -l test.jtl
Are there any stuff I can improve me testing?
p.s. I remember there might be something like maxHeap in the Java
command, but I am not sure.
Thanks.
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Re: HTTP Extreme Load Testing
Posted by sebb <se...@gmail.com>.
On 19/09/2008, howard chen <ho...@gmail.com> wrote:
> Hi,
>
>
> On Fri, Sep 19, 2008 at 11:55 PM, sebb <se...@gmail.com> wrote:
> > Use CSV output format - it's much cheaper to read.
> >
>
>
> Thanks first.
>
> Do you mean in the aggregated report, choose CSV output rather than XML?
I meant to set CSV output in the properties file so that the file
created by "-l test.jtl" is in CSV format.
> In fact, I just want the final result such as req/sec, %
> success/error, I don't need the whole test log.
In that case, consider using a Summariser:
http://jakarta.apache.org/jmeter/usermanual/component_reference.html#Generate_Summary_Results
and dispensing with the JTL files.
>
>
> Howard
>
>
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> 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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Re: HTTP Extreme Load Testing
Posted by howard chen <ho...@gmail.com>.
Hi,
On Fri, Sep 19, 2008 at 11:55 PM, sebb <se...@gmail.com> wrote:
> Use CSV output format - it's much cheaper to read.
>
Thanks first.
Do you mean in the aggregated report, choose CSV output rather than XML?
In fact, I just want the final result such as req/sec, %
success/error, I don't need the whole test log.
Howard
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Re: HTTP Extreme Load Testing
Posted by sebb <se...@gmail.com>.
On 19/09/2008, howard chen <ho...@gmail.com> wrote:
> Hi,
>
>
> On Fri, Sep 19, 2008 at 3:15 AM, sebb <se...@gmail.com> wrote:
> >> 2. I am using the command: jakarta-jmeter-2.3.2/bin/jmeter -n -t
> >> test.jmx -l test.jtl
> >
> > That's fine.
> >
>
>
> I have do a few test these days, work very well!
>
> The only problem so far is by running too many requests, the result
> JTL is too large to analyze (I am using aggregated report listener).
> The JMeter is too slow to open the JTL to show the result. Any better
> way to see the stats, e.g. req/sec., % fail etc
>
Use CSV output format - it's much cheaper to read.
>
> Thanks.
>
> ---------------------------------------------------------------------
> 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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Re: HTTP Extreme Load Testing
Posted by howard chen <ho...@gmail.com>.
Hi,
On Fri, Sep 19, 2008 at 3:15 AM, sebb <se...@gmail.com> wrote:
>> 2. I am using the command: jakarta-jmeter-2.3.2/bin/jmeter -n -t
>> test.jmx -l test.jtl
>
> That's fine.
>
I have do a few test these days, work very well!
The only problem so far is by running too many requests, the result
JTL is too large to analyze (I am using aggregated report listener).
The JMeter is too slow to open the JTL to show the result. Any better
way to see the stats, e.g. req/sec., % fail etc
Thanks.
---------------------------------------------------------------------
To unsubscribe, e-mail: jmeter-user-unsubscribe@jakarta.apache.org
For additional commands, e-mail: jmeter-user-help@jakarta.apache.org
Re: HTTP Extreme Load Testing
Posted by sebb <se...@gmail.com>.
On 17/09/2008, howard chen <ho...@gmail.com> wrote:
> Hi,
>
> I am using JMeter to test my CGI program. (HTTPSampler)
>
> I want to simulate large amount of user load, so I set:
>
> num_threads = 2000
> loops = 1000
>
> During the test, I check using the `top` command:
>
> =====================
>
> PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
> 19099 root 25 0 578m 149m 10m S 72.5 3.7 0:20.50 java
> =====================
>
> 1. Seems JMeter is not using all my resources to do the testing? (i.e.
> some portion of memory does into virtual)
Not sure what the problem is here - if JMeter is not using all
resources perhaps it does not need them.
You could try running JMeter on a system with fewer resources ;-)
> 2. I am using the command: jakarta-jmeter-2.3.2/bin/jmeter -n -t
> test.jmx -l test.jtl
That's fine.
>
> Are there any stuff I can improve me testing?
>
> p.s. I remember there might be something like maxHeap in the Java
> command, but I am not sure.
>
Read the Java docs; there's some info in the jmeter script files.
>
> Thanks.
>
> ---------------------------------------------------------------------
> 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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