G1 Performance [Was: JEP 248: Make G1 the Default Garbage Collector]

Andrew Dinn adinn at redhat.com
Thu Jul 30 07:53:50 UTC 2015

On 30/07/15 07:29, Kirk Pepperdine wrote:
> You have to give G1 more memory than what you’d use with the parallel
> collector. Less memory will lower your throughput.

That may well be so but Andrew is using the out of the box settings. If
they included an increased memory size to accompany the change to G1
then the above comment might be more salient. The issue here is what
happens in the default case.


Andrew Dinn
Senior Principal Software Engineer
Red Hat UK Ltd
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