Hi guys, thanks so much for you help. After your recommendations, I have made following amendments to my script: i. I have disabled the Cache Managers ii. I have deleted all Timers and kept, for each thread group, just one, as sibling of the HTTP requests Unfortunately, I am still experiencing the same problem :-( Does jmeter keeps the downloaded items in memory? If yes, is it possible to prevent this?
Thanks! Eric. On Wed, Aug 13, 2008 at 7:29 PM, sebb <[EMAIL PROTECTED]> wrote: > On 13/08/2008, Fitzpatrick, Adrian <[EMAIL PROTECTED]> wrote: > > > > As Michael said , no errors! Where do you see the out of memory? In > terms of > > the JMX, the likely culprit is probably the HTTP cache manager. I see > that it > > clears after interation but I also see each iteration apppears to > download a > > hell of a lot! I haven't counted at all, but I imagine a worst case > scenario > > of 128 threads running simulateanously and downloading say 10mb per > > iteration, theres up 1.2Gb memory gone before you even count jmeter's > own > > memory usage.... have u tried running without this element? > > > > The Cache Manager should only save the Last-Modified and Etag values > for each URL, but maybe it has a fault. > > > > > -----Original Message----- > > From: Eric Tchepannou [mailto:[EMAIL PROTECTED] > > > > Sent: 13 August 2008 18:55 > > To: JMeter Users List > > > > Subject: Re: OutOfMemoryErrors. Tips for performance improvement. > > > > > > ************************************* > > > > This e-mail has been received by the Revenue Internet e-mail service. > (IP) > > > > ************************************* > > > > > > see attached. > > > > Thanks . > > > > Eric. > > > > > > On Wed, Aug 13, 2008 at 6:28 PM, Fitzpatrick, Adrian < > [EMAIL PROTECTED]> > > wrote: > > > > > > > > Hi Eric, > > > > We are running more threads with less memory than this, so it should be > > possible. Are you doing anything odd in your thread groups that might > consume > > a lot of memory? If you want to share ur JMX file i can take a look and > see > > if I can spot anything.... > > > > Regards, > > > > Adrian > > > > > > -----Original Message----- > > From: Eric Tchepannou [mailto: [EMAIL PROTECTED] > > Sent: 13 August 2008 17:58 > > To: JMeter Users List > > Subject: OutOfMemoryErrors. Tips for performance improvement. > > > > > > Hi all, > > > > I am looking for tips to improve performance with jmeter. I have > recorded a > > web test script containing two thread groups. Following the jmeter's > best > > practice guide, I have disabled all my listeners and I am running in > nongui > > mode and with "-Xms2048m -Xmx2048m". I am trying to simulate 128 (2 x > 64) > > users for one hour, but constantly get OutOfMemory errors after about 15 > > minutes. I would have hoped to be able to perform this test from a > single > > client, but it looks like this will only work with distributed testing > or do > > you know any other useful tip I could use to improve the performance? > > > > Thanks, > > > > Eric. > > > > > > > > ************************ > > > > This message has been delivered to the Internet by the Revenue Internet > > e-mail service (OP) > > > > ************************* > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: [EMAIL PROTECTED] > > For additional commands, e-mail: [EMAIL PROTECTED] > > > > > > > > > > > > > > ************************ > > > > This message has been delivered to the Internet by the Revenue Internet > e-mail service (OP) > > > > ************************* > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
