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From Adrian Speteanu <asp.ad...@gmail.com>
Subject Re: GUI getting slower?
Date Thu, 04 Apr 2013 14:20:06 GMT
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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