RFR: 8264524: jdk/internal/platform/docker/TestDockerMemoryMetrics.java fails due to swapping not working [v3]

[Severin Gehwolf]

On Tue, 6 Apr 2021 13:11:54 GMT, Jie Fu <jiefu at openjdk.org> wrote:

>> Hi all,
>> 
>> jdk/internal/platform/docker/TestDockerMemoryMetrics.java fails on some of our testing platforms.
>> This is because testMemoryFailCount [1] fails due to OOM killed.
>> This test fails to avoid OOM killed [2] if memory.failcnt is always 0.
>> 
>> The fix will print "Not OOM killed" if OOM killed doesn't happen.
>> And also fix another bug if the test get returned here [3].
>> 
>> Testing: 
>>   - jdk/internal/platform/docker/ hotspot/jtreg/containers on Linux/x64
>> 
>> Thanks.
>> Best regards,
>> Jie
>> 
>> [1] https://github.com/openjdk/jdk/blob/master/test/jdk/jdk/internal/platform/docker/TestDockerMemoryMetrics.java#L80
>> [2] https://github.com/openjdk/jdk/blob/master/test/jdk/jdk/internal/platform/docker/MetricsMemoryTester.java#L87
>> [3] https://github.com/openjdk/jdk/blob/master/test/jdk/jdk/internal/platform/docker/MetricsMemoryTester.java#L96
>
> Jie Fu has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Update the comment

LGTM.

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Marked as reviewed by sgehwolf (Reviewer).

PR: https://git.openjdk.java.net/jdk/pull/3286