MaxGCPauseMillis

[igain]

I have a doubt over the following JVM option

-XX:MaxGCPauseMillis=nn millis

Is it to instruct the JVM to keep major collection pause time under nn milli seconds or minor collection pause time?

I belive there is no gurantee over the time which i specify in this, but JVM will try to keep the puase time close to nn millis. Is that understanding correct?

[peterj]

Looking at the JVM source for 1.5.0_10, it would appear that this option is used only by the ParallelScavange collector, and is used only for major collections. There is a separate option, MaxGCMinorPauseMillis, that is used ofr the minor collections.

In JDK 7 (b-53, 02Apr09), the MaxGCPauseMillis is also applied to the CMS collector (which is major collection only).

[igain]

Thanks for the info Peter.