On Tue, 18 Nov 2025 09:06:24 GMT, Jonas Norlinder <[email protected]> 
wrote:

>> Current trivial test for `TestGetTotalGcCpuTime` fails as some OSs may have 
>> a slower update rate for the underlying CPU time thread counters than the 
>> code anticipated, causing the test to fail which assumes that some work have 
>> been performed and the count should be non-zero.
>> 
>> Solution: All GCs we are testing are tracing GCs. Therefore, add some 
>> marking job to inflate the GC CPU time such that we can guarantee to observe 
>> a non-zero value.
>
> Jonas Norlinder has updated the pull request incrementally with one 
> additional commit since the last revision:
> 
>   Prevent escaping: no shadowing

Looks good. Runs many times for me, I let it go for 15 iterations with jtreg.
Then I let it run for 4 iterations with -Xcomp and over 20 with 
-XX:-TieredCompilation

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PR Comment: https://git.openjdk.org/jdk/pull/28362#issuecomment-3546490368

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