[jdk17u-dev] RFR: 8294677: chunklevel::MAX_CHUNK_WORD_SIZE too small for some applications

[Xin Liu]

On Wed, 1 Feb 2023 10:43:30 GMT, Thomas Stuefe <stuefe at openjdk.org> wrote:

> Downport is not clean. Patch did not merge cleanly, but only due to trivial comment changes introduced with "8273783: Simplify Metaspace arena guard handling" in test/hotspot/gtest/metaspace/test_metaspace_misc.cpp . I don't plan to downport 8273783.

LGTM. 

I think this patch is safe.  It horizontally extends the maximal chunk of metaspace from 4M to 16M. The only side effect is that the updated jdk increases the reserve space for MetaSpace from 8Mb to 16Mb on LP32 systems. It's fine.

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Marked as reviewed by xliu (no project role).

PR: https://git.openjdk.org/jdk17u-dev/pull/1142