-XX:+UseNUMA in conjunction with -XX:+UseG1GC

[David Weeda]

Hello,

We are upgrading our SAP Java Application servers to use SAP JVM 8.1 Patch Collection 39. This release integrates updates from Oracle JDK 8u172

The GC shall be switched from -XX:+UseConcMarkSweepGC to -XX:+UseG1GC.

On the following website:-
https://docs.oracle.com/javase/8/docs/technotes/guides/vm/performance-enhancements-7.html#numa
There is a note on NUMA Collector Enhancements for the Parallel Scavenger garbage collector. Are the subsequent collectors, namely the G1 garbage collector also NUMA aware? Is it default? May I use the -XX:+UseNUMA flag with -XX:+UseG1GC?

Regards,
David Weeda
SAP Technical Architect | Enterprise Systems | Information Technology Directorate
Level 11, 8 Central Ave | Eveleigh NSW 2015 | |*:+61 (0)4 8822 0280 | *: david.weeda at det.nsw.edu.au<mailto:david.weeda at det.nsw.edu.au> | www.dec.nsw.gov.au<http://www.dec.nsw.gov.au/>

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