On Fri, 16 Jul 2021 06:14:07 GMT, Matthias Baesken <mbaes...@openjdk.org> wrote:
>> Hello, please review this PR; it extend the OSContainer API in order to also
>> support the pids controller of cgroups.
>>
>> I noticed that unlike the other controllers "cpu", "cpuset", "cpuacct",
>> "memory" on some older Linux distros (SLES 12.1, RHEL 7.1) the pids
>> controller might not be there (or not fully supported) so it was added as
>> optional , see the coding
>>
>>
>> if (!cg_infos[PIDS_IDX]._data_complete) {
>> log_debug(os, container)("Optional cgroup v1 pids subsystem not found");
>> // keep the other controller info, pids is optional
>> }
>
> Matthias Baesken 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 five additional
> commits since the last revision:
>
> - Merge remote-tracking branch 'origin/master' into JDK-8266490
> - Add hotspot tests
> - test and small adjustments suggested by Severin
> - Adjustments following Severins comments
> - JDK-8266490
Hi Severin, thanks for the comments. I added a commit with a number of
adjustments
src/hotspot/os/linux/cgroupSubsystem_linux.cpp
adjusted log_info to log_debug
src/java.base/share/classes/sun/launcher/LauncherHelper.java
adjusted the output to "Maximum Processes Limit:"
test/hotspot/jtreg/containers/docker/CheckOperatingSystemMXBean.java
removed the getPidsMax related line (I think I inserted it while running some
tests and forgot previously to remove it)
test/hotspot/jtreg/containers/docker/TestPids.java
added testing of "Unlimited"; added --pids-limit=-1 for Unlimited procs like
you suggested
test/jdk/jdk/internal/platform/docker/TestPidsLimit.java
adjusted output; added --pids-limit=-1 for Unlimited procs like you suggested
-------------
PR: https://git.openjdk.java.net/jdk/pull/4518
