8359685: Test stress/compiler/deoptimize/Test.java fails Out of space in CodeCache

[sendaoYan]

Hi all,

Test test/hotspot/jtreg/vmTestbase/vm/mlvm/meth/stress/compiler/deoptimize/Test.java fails "Out of space in CodeCache" on machine which has huge CPU core number. This test will create lots of compile threads to stress test the compiler deoptimize, the thread number depends on the CPU core number, so on huge CPU core number machine this test will report "Out of space in CodeCache" failure.
The "java.lang.OutOfMemoryError: Out of space in CodeCache" seems not the expected error, and increase the max code cache memory will make this test run pass steady. Could we change ReservedCodeCacheSize from 100m to 200m?

Test-fix only, change has been verified on 256 core number linux-x86 machine and on 64 core number linux-x86 machine.

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• JDK-8359685: Test stress/compiler/deoptimize/Test.java fails Out of space in CodeCache (Bug - P4)

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[mhaessig]

This looks similar to #25872 which limits the number of compiler threads for high core counts. Would that perhaps already fix this issue or help reduce the amount of code cache needed?

[sendaoYan]

This looks similar to #25872 which limits the number of compiler threads for high core counts. Would that perhaps already fix this issue or help reduce the amount of code cache needed?

Sorry, I didn't noticed that there is already have the same JBS issue. I think I can close this PR and the related JBS issue.

[mhaessig]

Sorry, I didn't noticed that there is already have the same JBS issue. I think I can close this PR and the related JBS issue

I don't think it's the exact same issue, but the solution I implemented in the other PR might have an effect on this one.

[sendaoYan]

I don't think it's the exact same issue, but the solution I implemented in the other PR might have an effect on this one.

I have verified your implemented manually, it did fix this issue.

[mhaessig]

Oh sorry, I missed that. Good to hear, though.