On Wed, 27 Apr 2022 14:24:50 GMT, Severin Gehwolf <[email protected]> wrote:
>> xpbob has updated the pull request incrementally with one additional commit
>> since the last revision:
>>
>> revert file
>
> test/hotspot/jtreg/containers/docker/TestMisc.java line 60:
>
>> 58: testPrintContainerInfo();
>> 59: testPrintContainerInfoActiveProcessorCount();
>> 60: testPrintContainerMemoryInfo("100M", "150M");
>
> Again. This test runs unconditionally. `--memory-swappiness` is not supported
> in cgroups v2. Thus, the test will fail on a cgroups v2 system. You need to
> only run this test on a cgroups v1 system. Have a look at
> `test/lib/jdk/test/lib/containers/cgroup/MetricsTester.java` how could could
> detect this and only run on `cgroupv1` providers.
On my cgroups v2 system (i.e. it's using 200m memory + 200m swap):
$ sudo docker run --rm -ti --memory-swappiness=0 --memory=200m fedora:35
WARNING: Your kernel does not support memory swappiness capabilities or the
cgroup is not mounted. Memory swappiness discarded.
[root@fb3182c8e23c /]# cat /sys/fs/cgroup/memory.max
209715200
[root@fb3182c8e23c /]# cat /sys/fs/cgroup/memory.swap.max
209715200
-------------
PR: https://git.openjdk.java.net/jdk/pull/8285
