RFR: 8333446: Add tests for hierarchical container support [v6]

[Severin Gehwolf]

On Thu, 29 Aug 2024 15:22:02 GMT, Matthias Baesken <mbaesken at openjdk.org> wrote:

>> Severin Gehwolf has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains 10 additional commits since the last revision:
>> 
>>  - Add root check for SystemdMemoryAwarenessTest.java
>>  - Merge branch 'master' into jdk-8333446-systemd-slice-tests
>>  - Merge branch 'master' into jdk-8333446-systemd-slice-tests
>>  - Merge branch 'master' into jdk-8333446-systemd-slice-tests
>>  - Add Whitebox check for host cpu
>>  - Merge branch 'master' into jdk-8333446-systemd-slice-tests
>>  - Merge branch 'master' into jdk-8333446-systemd-slice-tests
>>  - Merge branch 'master' into jdk-8333446-systemd-slice-tests
>>  - Fix comments
>>  - 8333446: Add tests for hierarchical container support
>
> test/hotspot/jtreg/containers/systemd/SystemdMemoryAwarenessTest.java line 58:
> 
>> 56:         SystemdRunOptions opts = SystemdTestUtils.newOpts("HelloSystemd");
>> 57:         // 1 GB memory
>> 58:         opts.memoryLimit("1000M");
> 
> Just wondering - is 1G here possible (the comment states 1 GB / 1024M) ?

I probably shall fix the comment or change it to `1024M`. Either way it has to match the assertion where we look for `1048576000` bytes in the output.

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PR Review Comment: https://git.openjdk.org/jdk/pull/19530#discussion_r1736549823