RFR: 8361180: Disable CompiledDirectCall verification with -VerifyInlineCaches
Vladimir Kozlov
kvn at openjdk.org
Tue Jul 1 15:59:38 UTC 2025
On Tue, 1 Jul 2025 10:47:40 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:
> Missed the spot when doing [JDK-8360867](https://bugs.openjdk.org/browse/JDK-8360867). There is a path from GC that calls into IC verification when cleaning the caches. See `nmethod::cleanup_inline_caches_impl`. It does verification per callsite, and does the whole thing during parallel GC cleanup, which is STW at least in G1. This gets expensive for CTW scenarios. We should wrap that under the same flag introduced by [JDK-8360867](https://bugs.openjdk.org/browse/JDK-8360867).
>
> Motivational improvements:
>
>
> $ time CONF=linux-x86_64-server-fastdebug make test TEST=applications/ctw/modules/
>
> # Current mainline
> real 3m59.274s
> user 68m9.663s
> sys 5m19.026s
>
> # This PR
> real 3m49.118s
> user 65m37.962s
> sys 5m15.441s
Trivial.
-------------
Marked as reviewed by kvn (Reviewer).
PR Review: https://git.openjdk.org/jdk/pull/26063#pullrequestreview-2976063372
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