RFR: 8341379: Shenandoah: Improve lock contention during cleanup

[Kelvin Nilsen]

On Wed, 2 Oct 2024 00:24:00 GMT, Kelvin Nilsen <kdnilsen at openjdk.org> wrote:

>> src/hotspot/share/gc/shenandoah/shenandoahFreeSet.cpp line 944:
>> 
>>> 942:       // yields.  Yielding more frequently when there is heavy contention for the heap lock or for CPU cores is considered the
>>> 943:       // right thing to do.
>>> 944:       const size_t REGION_STRIDE = 32;
>> 
>> Maybe call this `REGIONS_PER_BATCH`? When I see `stride` I think how far the loop index moves on each iteration.
>
> Good suggestion.

Thanks.  I've made this change.

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PR Review Comment: https://git.openjdk.org/jdk/pull/21211#discussion_r1783698490