Hi Paul, I would suggest that a good study of how GC performs for your load test is in order. I’d start by setting the following flags -Xloggc:jmetergc.log -XX:+PrintGCDetails -XX:+PrintTenuringDistribution -XX:TenuringThreshold=15
Also, remove the setting for NewSize. In fact I always start any GC tuning exercise by only setting max heap size and nothing else except turning up the tenuring threshold to 15. I have tooling to look at the output but it’s commercial but if you send me the GC log I’ll perform a quick analysis for you. Kind regards, Kirk Pepperdine On Aug 18, 2014, at 1:54 PM, [email protected] wrote: > Hi, > > I am running a 64-bit JVM on a LInux machine with 15GB of RAM. > > I have increased the Java heap space size by 16x > > HEAP="-Xms8192m -Xmx8192m" > > I have a feeling that I should be increasing the eden space by a > proportionate amount: > > NEW="-XX:NewSize=2048m -XX:MaxNewSize=2048m" > > However, the comment above the eden setting states: > > "you'll need to tune this down proportionally if you modify the HEAP > values above" > > Which I find confusing. > > Many Thanks > > Paul > > > --------------------------------------------------------------------- > 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]
