Please make changes in the following way..it may help you...

set HEAP=-Xms512m -Xmx1024m
set NEW=-XX:NewSize=128m -XX:MaxNewSize=512m
set SURVIVOR=-XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=50%
set TENURING=-XX:MaxTenuringThreshold=2
set EVACUATION=-XX:MaxLiveObjectEvacuationRatio=50%
set RMIGC=-Dsun.rmi.dgc.client.gcInterval=600000
-Dsun.rmi.dgc.server.gcInterval=600000
set PERM=-XX:PermSize=128m -XX:MaxPermSize=128m
set DEBUG=-verbose:gc -XX:+PrintTenuringDistribution

save the jmeter.bat file and run jmeter once again. If you are facing the same 
problem then run your script in non-gui mode...



With Regards,
Suvendu

-----Original Message-----
From: C.Vijayakumar [mailto:bcvijayaku...@altechindia.com]
Sent: Monday, May 04, 2009 11:03 AM
To: 'JMeter Users List'
Cc: mattcoven...@iseinc.biz
Subject: JDBC Connection Config

Hi Sebb / Matt ,

Am using JMeter for Load testing our Java application . I have some doubts
on using JMeter . Could you please help me to solve my doubts pls ?

My Tuning Parameters are as follows

set HEAP=-Xms512m -Xmx1024m
set NEW=-XX:NewSize=128m -XX:MaxNewSize=128m
set SURVIVOR=-XX:SurvivorRatio=8 -XX:TargetSurvivorRatio=50%
set TENURING=-XX:MaxTenuringThreshold=2
set EVACUATION=-XX:MaxLiveObjectEvacuationRatio=20%
set RMIGC=-Dsun.rmi.dgc.client.gcInterval=600000
-Dsun.rmi.dgc.server.gcInterval=600000
set PERM=-XX:PermSize=128m -XX:MaxPermSize=128m
set DEBUG=-verbose:gc -XX:+PrintTenuringDistribution


I have defined the Heap size as 512 - 1024  & My RAM size is 512 MB . I have
run my Test Plan using JDBC Connection configuration for 3964 concurrent
users successfully .  If I use more than 4000 Users , JMeter shows Out of
Memory error . Even if i tried running the test plan by changing the Heap
size as 256 - 1024 , 768 - 1536 & 512 - 512 , there is no improvement on my
concurrent users , still am getting Out of memory error message

I tried the same test plan in another system which has 1 GB RAM , But in
that system,   Only 2000 concurrent users have successfully completed and I
got the same Out of Memory error .

Could anyone / you please reveal me what I have to do to get proper results
for more than 5000 Concurrent users ?

Thanking you in Advance .

Thanking you .
With warm regards.,
Vijayakumar.C


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