it would be recommended to run it for less number of users first to see if your servers can handle such load..100/500/1000
Himanshu On Tue, May 5, 2009 at 3:37 AM, sebb <[email protected]> wrote: > On 04/05/2009, C.Vijayakumar <[email protected]> wrote: >> 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 ? > > That's a lot of users. Are you sure you need to test with so many? > Remember that JMeter can put a lot more load on a server than a real > user, unless you include appropriate wait times. > > If you really need to test with that many users, then use non-GUI > mode, and run the same test in parallel on several different hosts, > then combine the results. > > Also, depending on your OS, 1GB is not very much memory for such a > large number of users. > > See also: > > http://jakarta.apache.org/jmeter/usermanual/best-practices.html#lean_mean > > JMeter distributed mode (client-server) is unlikely to help here, as > the JMeter client and network are likely to become a bottle-neck. > >> Thanking you in Advance . >> >> Thanking you . >> With warm regards., >> >> Vijayakumar.C >> >> > > --------------------------------------------------------------------- > 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]
