RFR: 8284404: Too aggressive sweeping with Loom

Thu May 12 17:37:00 UTC 2022

On Thu, 12 May 2022 16:07:11 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

> Did you run our regular performance testing with loom to see how this change affect performance?
> 
> Why 10x and not other number?

I tried to find a problematic workload where tis is a real issue and and manually found that jython compiles a lot of methods yielding a lot of sweeper triggered GCs. This new threshold remedied the problem so that only a few were triggered.
I have however not run the wider perf suite. I can do that though.

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PR: https://git.openjdk.java.net/jdk/pull/8673