On 28/01/2008, Lists <[EMAIL PROTECTED]> wrote: > Hi, > > I've posted about this before, but got some more info now. > > We have a standard apache -> tomcat -> oracle system. In the db we can > access the total time spent in tomcat and oracle. By analysing the apache > logs (modjk gives you an elapsed time) we can log the time spent in apache, > tomcat and oracle. > > And then of course jmeter gives us the overall end to end response times. > > The problem i have is that at higher loads, the gap of response times > reported by jmeter grows much faster than it does when reported at the > apache layer. So i thought this was caused by a busy jmeter server. > > So i ran 2 jmeters on 2 separate servers independantly (At half load). > Unfortunately the gap remains. > > Is this a usual scenario that people see at high loads? could the figures > being reported be lieing to me? The DB server is under load at this point > but none of the other servers seem stressed. I'm a bit stuck in how to > debug this further? >
How much longer? A few percent or much more? Are all samples affected? Does the additional time depend on the sample size? Note that the elapsed time will necessarily be longer than the apache log time; the JMeter latency should be closer to the apache log timings. Are you using any functions in the samplers? Function execution is single-threaded. > Thanks, > Dan > > ________________________________________________ > Message sent using UebiMiau 2.7.10 > > > > --------------------------------------------------------------------- > 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]
