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From Jean-Sebastien Morisset <jsmor...@mvlan.net>
Subject Re: Question about results
Date Wed, 01 Oct 2003 20:31:29 GMT
On Wed, Oct 01, 2003 at 05:13:01PM +0100, BAZLEY, Sebastian wrote:
> [Redirected to JMeter User]
> 
> If you run jmeter in non-GUI mode (-n flag) there will be fewer overheads.

I would, except I can't figure out how to import the resulting xml file
in jmeter! All the Open menu commands give me an "error in TesPlan"
message.

Anyway, according to vmstat, the machine is %97 idle while running the
test plan.

> Also, the number and type of listeners (visualisers) can make a big
> difference to resource usage.
> View tree is expensive. Aggregate is cheaper.

I only have aggregate, and no logging at all. My test plan is very
simple:

- test plan
    - thread group
	- aggregate report
	- counter
	- http request default
	- http request
	    - regexp extractor
	- throughput controller 4.76%
	    - http requests default
	    - http request
		- response assertion
	    - http request
		- response assertion
	- loop controller 4x
	    - http requests default
	    - http request
	    - throughput controller 7%
		- http request

Any other suggestions?

Thanks,
js.

> See Mike's posting a few days ago in JMeter user.
> 
> S.
> -----Original Message-----
> From: Jean-Sebastien Morisset [mailto:jsmoriss@mvlan.net]
> Sent: 01 October 2003 16:55
> To: JMeter Developers List
> Subject: Re: Question about results
> 
> 
> On Wed, Oct 01, 2003 at 05:20:34PM +0200, Jordi Salvat i Alabart wrote:
>> Looks like around 1x20 you saturated the JMeter CPU. 1x40 did not 
>> increase load -- not because the web server was saturated, but because 
>> the JMeter machine was. When you did the 2x20, you were actually 
>> providing twice as much CPU power to JMeter, so you could create twice 
>> as much load.
> 
> Jordi, I just ran a quick test with 60 threads. The command I used to
> start the GUI is:
> 
> ssh -f -l root XXXXXXXXXXX "export
> PATH=\"/usr/java/j2re1.4.2_01/bin:/usr/local/sbin:/usr/local/bin:/sbin:/bin:
> /usr/sbin:/usr/bin\" && cd /usr/local/jakarta-jmeter/bin && rm -f jmeter.xml
> && java -jar ./ApacheJMeter.jar -t \"Test Plan.jmx\" -p jmeter.properties"
> 
> vmstat told me (excluding 1st line of history):
> 
>    procs                      memory    swap          io     system  cpu
>  r  b  w   swpd   free   buff  cache  si  so    bi    bo   in    cs  us sy
> id
>  0  0  0      0 431196 194040 272888   0   0     0     5  595   186   2 0
> 97
>  1  0  2      0 431196 194040 272888   0   0     0     6  591   176   3 1
> 97
>  1  0  0      0 431196 194040 272888   0   0     0     5  589   173   2 0
> 97
>  0  0  0      0 432440 194040 272896   0   0     0     7  585   179   2 0
> 98
> 
> The aggregate report:
> 
> HTTP Request (1)  846   1223  31   7098   0.00%  4.3/sec
> HTTP Request (2)  60	1134  203  2386   0.00%  18.1/sec
> HTTP Request (3)  60	2999  538  4881   0.00%  7.7/sec
> HTTP Request (4)  3509  2976  521  11542  0.00%  17.9/sec
> TOTAL             4475  2620  31   11542  0.00%  22.6/sec
> 
> Thanks,
> js.
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-- 
Jean-Sebastien Morisset, Sr. UNIX Administrator <jsmoriss@mvlan.net>
Personal Home Page <http://jsmoriss.mvlan.net/>
JS & Melanie's Homebrewery <http://brewery.mvlan.net/>
Underwater and Travel Photographs <http://www.mvpix.com/>

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