On 2 September 2011 16:44, Vance Zhao <vancez...@gmail.com> wrote: > i'm aslo hitting the slow result when using the http sampler with > httpclient4. i found it easily eat out all the resouce with httpclient4 and > actually i got OOM in the jmeter client side. Do we forget closing the > connction in jmeter?
I already wrote (in this thread) that there is a bug in the HttpClient4 implementation - it does not re-use connections when it should. This has been fixed in SVN and will be in the next release, whenever that is. > On Aug 31, 2011 11:44 PM, "Robin D. Wilson" <rwils...@gmail.com> wrote: >> Sebb asked: >>>> >>>>>How do the average elapsed times compare? >>>> >>>> The average times are about 50% longer than with 2.4 - so where I was >>>> averaging ~1000ms for the 'submit' (POST) action, it is now showing >>>> about >>>> 1500 to 1750ms. (I am mostly concerned with the 'POST' because that's >>>> where all the real work occurs on our server side.) >>> >>>Are all the methods equally affected? >> >> Hard to say, I wasn't recording them in the benchmark data I keep - but in >> just looking at it, I would say yes. >> >>>>>Also what about min/max std.dev? >>>> >>>> Those varied a lot from one run to the next anyway - just because I've >>>> always been dealing with very short durations - but I did notice that >>>> the 'max' seemed to consistently read higher than my prior benchmarks >>>> - but only by 1-2 seconds (1000-2000ms). Given the variables in the >>>> system - that doesn't seem too outrageous to me. >>>> >>>>>The http sampler code was re-organised for 2.5; additional classes >>>>>were >>>> added and there is another code layer, >>>>>but I'd be surprised if that had a significant effect. >>>> >>>> I wonder if that mattered - it sure appears to be making a big >>>> difference. I think I could re-work the script to use AJP (we're >>>> hitting 'tomcat' through an apache front-end right now - and our >>>> apache uses AJP), but I have no prior benchmarks to compare AJP with... >>> >>>Not sure how that would help. >> >> If it were something in the HTTP Request HTTP Client sampler, it might > make >> a difference if I switched to a different sampler. If it is a problem that >> is global to all JMeter samplers, then it won't help at all. Just trying > to >> isolate the problem area. >> >>>I find it hard to believe that the additional code used by the samplers - > I >> think it's just >>>one extra level of indirection - could cause the significantly different >> results you are seeing. >>> >>>Does the jmeter.log file show anything relevant? >> >> Not that I can see. Everything appears normal to me. >> >> -- >> Robin D. Wilson >> Sr. Director of Web Development >> KingsIsle Entertainment, Inc. >> VOICE: 512-777-1861 >> www.KingsIsle.com >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: jmeter-user-unsubscr...@jakarta.apache.org >> For additional commands, e-mail: jmeter-user-h...@jakarta.apache.org >> > --------------------------------------------------------------------- To unsubscribe, e-mail: jmeter-user-unsubscr...@jakarta.apache.org For additional commands, e-mail: jmeter-user-h...@jakarta.apache.org
