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

Albert Mingkun Yang ayang at openjdk.java.net
Wed Jun 9 10:40:23 UTC 2021


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.

This pull request has now been integrated.

Changeset: dd34a4c2
Author:    Albert Mingkun Yang <ayang at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/dd34a4c28da73c798e021c7473ac57ead56c9903
Stats:     786 lines in 29 files changed: 415 ins; 192 del; 179 mod

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

Co-authored-by: Per Liden <pliden at openjdk.org>
Reviewed-by: pliden, eosterlund

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PR: https://git.openjdk.java.net/jdk/pull/4410


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