I've got 3 HTTPClient Samplers which make the requests then I've got 2 test actions (for think times), a couple of simple controllers to signify grouping (I cut this small section out of a much larger test plan), a loop controller and a few config elements (User Defined Variables, HTTP Request Defaults and HTTP Cookie Manager). All of these are in a Thread Group.
I can't figure out why so much memory would be used for just a single thread, jmeter overhead isn't that much, surely? Especially when running in non-GUI mode. sebb-2-2 wrote: > > On 08/05/2009, drubix <[email protected]> wrote: >> >> Sorry for the double post, edits don't get sent to the mailing list. >> >> I've removed to the Response Assertion in case that was the cause of the >> large memory use (it's the only "non-standard" component I'm using) but >> that >> doesn't change the memory usage. >> >> I've also tried running the test on a Windows box (which is running >> Sun's >> JDK instead of OpenJDK) with approximately the same results. >> >> Is this memory usage really standard? If that's the case, with a more >> complex test plan and a higher number of users, I'd be looking at a >> server >> farm just to simulate a couple of dozen users. > > I've certainly run HTTP tests with lots of users and not had such a > problem. > > Which samplers are you using? > >> Thanks, >> >> Drew >> >> >> >> drubix wrote: >> > >> > Hi Sebb, >> > >> > I do actually, just ran it when I got into work with a single instance >> and >> > its memory usage started at about 22MB and seemed to be growing at >> about >> > 1MB every 2 seconds or so until a plateau at about 132MB after 15mins. >> > This test had a single thread and was launched using the command: >> > >> > jmeter -n -t SimpleTest.jmx -l out.jtl >> > >> > It consists of mostly HTTPClient Samplers, a loop controller and a >> > Response Assertion (but no listeners). Does this memory usage seem >> > unusually high? >> > >> > Thanks, >> > >> > Drew >> > >> > >> > sebb-2-2 wrote: >> >> >> >> On 07/05/2009, drubix <[email protected]> wrote: >> >>> >> >>> Hi, >> >>> >> >>> I'm running a distributed test all on one system (to take advantage >> of >> >>> IP >> >>> aliasing) with one thread per instance of JMeter. When I watch the >> >>> processes with top on my RH Linux box, the memory usage of each >> JMeter >> >>> instance seems to be rising dramatically over time. The same >> number of >> >>> threads running for 5 mins uses around 1.5GB of memory total by the >> end >> >>> of >> >>> the run but when running for 30 mins ends up using closer to 4GB. >> >>> >> >>> I'm using the HTTPClient for all calls so that should be avoiding >> the >> >>> HTTPS >> >>> memory leak (only using HTTPS during the initial log on step >> anyway) >> >>> and I >> >>> have no listeners running (I'm running in non-GUI mode using the -l >> >>> switch). >> >>> I'm also using the default mode so that each sample is reported to >> the >> >>> master - the slave instances themselves shouldn't really be storing >> any >> >>> more >> >>> information than just the cookies, should they? >> >>> >> >>> Is there any other reason why the memory growth would be as it is? >> >> >> >> Sorry, no idea how memory usage behaves in client server mode. >> >> >> >> Do you see the same memory increase if you use independent non-GUI >> >> JMeter instances? >> >> >> >>> Thanks, >> >>> >> >>> Drew >> >>> >> >>> -- >> >>> View this message in context: >> >>> >> http://www.nabble.com/Increasing-Memory-Usage-tp23421516p23421516.html >> >>> Sent from the JMeter - User mailing list archive at Nabble.com. >> >>> >> >>> >> >>> >> --------------------------------------------------------------------- >> >>> 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] >> >> >> >> >> >> >> > >> > >> >> -- >> >> View this message in context: >> http://www.nabble.com/Increasing-Memory-Usage-tp23421516p23438414.html >> >> Sent from the JMeter - User mailing list archive at Nabble.com. >> >> >> --------------------------------------------------------------------- >> 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] > > > -- View this message in context: http://www.nabble.com/Increasing-Memory-Usage-tp23421516p23439593.html Sent from the JMeter - User mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
