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From Kostas Papadopoulos <kos...@methodosit.com.cy>
Subject Re: GUI getting slower?
Date Thu, 04 Apr 2013 14:25:08 GMT

Hi,

I'll do my best to look into this further. I already got a request to create 
a bug report for it. I'll do that first chance I get.

-- 
Best Regards

Kostas Papadopoulos

K.E MethodosIT Ltd

Tel: +357 22463610
Fax: +357 22515197
Website: http://www.methodosit.com.cy


On Thu 04 Apr 2013 17:20:06 Adrian Speteanu wrote:
> Hi,
> 
> 
> If you are willing to contribute with tests & results of your own, or if
> you find a scenario that doesn't work, its safe to say that everyone in
> the list is interested in reading about it.
> 
> Cheers.
> 
> 
> 
> 
> 
> On Wed, Apr 3, 2013 at 4:04 PM, Kostas Papadopoulos <
> 
> kostas@methodosit.com.cy> wrote:
> > Hi Philippe,
> > 
> > Thanks for the response. We have already changed our test practice to
> > non-GUI
> > testing so it is not an issue for us. But if anyone needs to investigate
> > this
> > further I'm willing to help.
> > 
> > --
> > Best Regards
> > 
> > Kostas Papadopoulos
> > 
> > K.E MethodosIT Ltd
> > 
> > Tel: +357 22463610
> > Fax: +357 22515197
> > Website: http://www.methodosit.com.cy
> > 
> > On Wed 03 Apr 2013 15:46:12 Philippe Mouawad wrote:
> > > Hello,
> > > @Kostas, there is a clear recommandation to do test in NON GUI mode.
> > > http://jmeter.apache.org/usermanual/best-practices.html
> > > 
> > > Since 2.5 there has been a lot of fixes on somes GUI issues related to
> > > synchronization problems, they may have incurred some performance
> > > degradations although I didn't notice them on the few tests I did.
> > > There has been a Bugzilla opened a while ago and tests didn't show it
> > > clearly
> > > 
> > > See:
> > >    - http://jmeter.apache.org/changes.html
> > >    - http://jmeter.apache.org/changes_history.html
> > > 
> > > @Kirk,
> > > Since 2.5 there has been quite a lot improvements on Memory and
> > > Performances.
> > > 
> > > Among this:
> > >    - fixes on memory leaks
> > >    - fixes on memory usage by Regexp Extractor which consumed the
> > >    double of a response size
> > >    - fixes in core
> > > 
> > > In 2.9, we introduced a performance improvement that may have
> > > increased usage of memory which in summary caches the response so
> > > that it is not converted/parsed as many times as there are post
> > > processors.
> > > 
> > > My tests showed an important performance gain if post-processors were
> > 
> > used
> > 
> > > which in my opinion is the majority of cases.
> > > 
> > > 
> > > So at first sight I doubt there is performance degradation between 2.5
> > 
> > and
> > 
> > > 2.9 but I may be wrong.
> > > 
> > > Don' t hesitate to open an issue with a sample test plan and as many
> > > informations as you have
> > > 
> > > 
> > > Regards
> > > 
> > > Philippe M.
> > > 
> > > On Wed, Apr 3, 2013 at 1:44 PM, Kirk Pepperdine
> > > 
> > > <kirk.pepperdine@gmail.com>wrote:
> > > > I've noted some significant differences in performance which I'll be
> > > > investigating over the next few days. The first thing I've noted is
> > > > a significant increase in memory requirements.
> > > > 
> > > > -- Kirk
> > > > 
> > > > On 2013-04-03, at 4:48 AM, Kostas Papadopoulos
> > > > <kostas@methodosit.com.cy>
> > > > 
> > > > wrote:
> > > > > We have been using JMeter version 2.5 to do some performance
> > > > > testing. I recently installed JMeter version 2.9 and I found that
> > > > > the test results
> > > > 
> > > > for
> > > > 
> > > > > the same tests are very different when using the GUI. In one
> > 
> > instance,
> > 
> > > > the
> > > > 
> > > > > same test gives throughput 4500/sec with version 2.5 and 3800/sec
> > 
> > with
> > 
> > > > 2.9.
> > > > 
> > > > > Running non-gui on both versions gives comparable results (within
> > 
> > 2%).
> > 
> > > > I'm
> > > > 
> > > > > running these tests on the same exact environment for both version
> > > > > (same machines, application to be tested, java version, database,
> > > > > data, etc.)
> > > > > 
> > > > > Is this to be expected? Is the recommended practise to run only
> > > > > non-gui?
> > > > 
> > > > Or
> > > > 
> > > > > is it something to be looked at more carefully?
> > > > > 
> > > > > Please excuse me if this has this been addressed before.
> > > > > 
> > > > > --
> > > > > Best Regards
> > > > > 
> > > > > Kostas Papadopoulos
> > > > > 
> > > > > K.E MethodosIT Ltd
> > > > > 
> > > > > Tel: +357 22463610
> > > > > Fax: +357 22515197
> > > > > Website: http://www.methodosit.com.cy
> > > > > 
> > > > > 
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