RFR: 8268372: ZGC: dynamically select the number of concurrent GC threads used

charlie hunt charlie.hunt at oracle.com
Wed Jun 9 15:42:33 UTC 2021


Nice to see this integrated. Great work!

charlie

On 6/9/21 5:40 AM, Albert Mingkun Yang wrote:
> On Tue, 8 Jun 2021 09:29:59 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:
>
>> This patch adds support for dynamically selecting the number of GC threads to ZGC.
>>
>> 1. The number of GC threads (in `[1, ConcGCThreads]`) is dynamically selected for each GC cycle.
>> 2. Increase the default value of ConcGCThreads from 12.5% to 25% of total CPUs.
> Thanks for the review.
>
> -------------
>
> PR: https://git.openjdk.java.net/jdk/pull/4410


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