RFR: 8334759: gc/g1/TestMixedGCLiveThreshold.java fails on Windows with JTREG_TEST_THREAD_FACTORY=Virtual due to extra memory allocation

[Ivan Walulya]

On Wed, 28 May 2025 09:25:17 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> Hi all,
> 
>   please review this change that "fixes" the `TestMixedGCLiveThreshold.java` test by requiring the thread factory used for these tests to not use virtual threads instead of platform threads.
> 
> That adds some additional memory consumption, and since the test is about testing G1 reaction due to particular known memory consumption, it can fail.
> 
> The fix is to add the appropriate `@requires` tag that has been introduced in jtreg 7.5.1 (which is current default/requirement for builds, https://bugs.openjdk.org/browse/JDK-8334759).
> 
> Testing: verified that the test is not run if the virtual thread test thread factory is used.
> 
> Thanks,
>   Thomas

Marked as reviewed by iwalulya (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/25486#pullrequestreview-2887203907