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 <[email protected]>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 <[email protected]> > 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 > > > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [email protected] > > For additional commands, e-mail: [email protected] > > > > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [email protected] > For additional commands, e-mail: [email protected] > > -- Cordialement. Philippe Mouawad.
