Integrated: 8266073: Regression ~2% in Derby after 8261804

Mon May 17 07:11:38 UTC 2021

On Tue, 11 May 2021 11:35:51 GMT, Leo Korinth <lkorinth at openjdk.org> wrote:

> My change in 8261804 made processing_is_mt() to always be false when _active_mt_degree is one. This is better because we then need not to execute on another thread. However, at a few places we do not change the _active_mt_degree if processing_is_mt() is false. We could then be stuck at 1 thread. I now change the code to always change the mt degree. 
> 
> Derby does no longer regress for g1, and tier 1 passes. I am running tier 1-3 at the moment.

This pull request has now been integrated.

Changeset: f4227879
Author:    Leo Korinth <lkorinth at openjdk.org>
URL:       https://git.openjdk.java.net/jdk/commit/f4227879b0504bc4656bd84153b13b04c007aa66
Stats:     22 lines in 4 files changed: 6 ins; 12 del; 4 mod

8266073: Regression ~2% in Derby after 8261804

Reviewed-by: ayang, sjohanss

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PR: https://git.openjdk.java.net/jdk/pull/3972