[jdk17u-dev] RFR: 8170817: G1: Returning MinTLABSize from unsafe_max_tlab_alloc causes TLAB flapping

[Xiaolong Peng]

On Fri, 28 Jun 2024 01:51:59 GMT, Paul Hohensee <phh at openjdk.org> wrote:

>> Hi all,
>> 
>> This pull request contains a backport of commit [4c79e7d5](https://github.com/openjdk/jdk/commit/4c79e7d59caec01b4d2bdae2f7d25f1dd24ffbf6) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.
>> 
>> The commit being backported was authored by Ivan Walulya on 12 Oct 2023 and was reviewed by Thomas Schatzl and Albert Mingkun Yang.
>> 
>> Additional test:
>> - [x]  make test TEST=test/hotspot/jtreg/:tier2 CONF=linux-aarch64-server-fastdebug
>> There were two irrelevant failures, I have created bug for them https://bugs.openjdk.org/browse/JDK-8335127
>> 
>> Thanks!
>
> nullptr -> NULL. Lgtm.

approval request Backport JDK-8170817 to jdk17; not clean due to the well known NULL -> nullptr change, reviewed by @phohensee; risk is low, the fix has been in tip for over 8 months, also ran tier1 and tier2 test.

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PR Comment: https://git.openjdk.org/jdk17u-dev/pull/2639#issuecomment-2196086328