G'day
I changed the JVM under which I am running JMeter server from 1.4.2 to 5 and found a reduction in throughput of about 25%. This was: - in distributed mode with the client on Windows XP and one server on AIX - without rebuilding JMeter for Java 5 - with the client always at 1.5 - with the memory management options in the JMeter proc commented out (for other reasons) but with plenty of memory allocated to the JVM on the server - running JMeter hard but not excessively so (360 concurrent users running flat chat but with 25% spare CPU on the server) - on a five minute run Is that consistent with expectations and if so is there a known way to claw some of that performance back. (I'd prefer to run JMeter under 1.5 so my Java samplers can be at 1.5. But for the moment at least I can't live with a 25% throughput loss.) Ian Blavins Contract Performance Engineer Temenos This email (and any attachments) contains confidential information, and is intended only for the named recipient. Distribution or copying of this email by anyone other than the named recipient is prohibited. If you are not the named or intended recipient, please notify TEMENOS or the sender immediately and permanently destroy this email (and any attachments) and all copies of it. No member of TEMENOS Group AG or any of its associated or affiliated companies is liable for any errors or omissions in the content or transmission of this email. Any opinions contained in this email are solely those of the author and, unless clearly indicated otherwise in writing, are not endorsed by any member of TEMENOS Group AG or any of its associated and affiliated companies.

