RFR: 8275416: G1: remove unnecesary make_referent_alive in precleaning phase

Stefan Johansson sjohanss at openjdk.java.net
Fri Oct 22 11:40:10 UTC 2021


On Tue, 19 Oct 2021 11:02:17 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

> Simple change of removing marking work in G1 precleaning. Evaluation using a contrived example shows ~20% reduction in precleaning. 
> 
> Test: hotspot_gc

Looks good. 

I would love if the PR summary would contain a bit information. More or less just a copy of what's in the JBS description.

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Marked as reviewed by sjohanss (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/6003



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