RFR: 8252105: Parallel heap inspection for ZCollectedHeap

Mon Oct 5 19:00:42 UTC 2020

On Mon, 5 Oct 2020 18:39:10 GMT, Per Liden <pliden at openjdk.org> wrote:

>> src/hotspot/share/gc/z/zHeapIterator.cpp line 55:
>> 
>>> 53:   ZHeapIteratorArrayQueue* const _array_queue;
>>> 54:   const uint                     _worker_id;
>>> 55:   ZStatTimerDisable              _timer_disable;
>> 
>> Why `ZStatTimerDisable`? Which timer(s) is it suppressing? I see that there's another one in `ZHeapIterator` as well.
>
> It's suppressing uses of `ZStatTimer` in the root iterators.

Got it; thank you.

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PR: https://git.openjdk.java.net/jdk/pull/507