sha1origin/pr/2522/mergeghprbActualCommit8bfbd123ce72b5c202c7070ed33f6df3f0dc268dghprbActualCommitAuthorghprbActualCommitAuthorEmailghprbAuthorRepoGitUrlhttps://github.com/jxiong/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId2522ghprbTargetBranchmasterghprbSourceBranchcgroup_testGIT_BRANCHcgroup_testghprbPullAuthorEmailjinshan.xiong@gmail.comghprbPullAuthorLoginjxiongghprbPullAuthorLoginMention@jxiongghprbPullDescriptionGitHub pull request #2522 of commit 8bfbd123ce72b5c202c7070ed33f6df3f0dc268d, no merge conflicts.ghprbPullTitleAdd sampe code for cgoup testghprbPullLinkhttps://github.com/iovisor/bcc/pull/2522ghprbPullLongDescriptionHow to run this test:\r\n0. Make sure you have cgroup2 mounted:\r\n $ mount -t cgroup2\r\n cgroup on /sys/fs/cgroup/unified type cgroup2 (rw,nosuid,nodev,noexec,relatime)\r\n1. Create a test cgroup in cgroup2 fs:\r\n $ sudo mkdir /sys/fs/cgroup/unified/test\r\n2. Run this program in a bash:\r\n $ sudo CGroupTest /sys/fs/cgroup/unified/test\r\n3. In another bash window, do the following:\r\n $ echo $$ > /sys/fs/cgroup/unified/test/cgroup.procs\r\n $ run some other commands\r\n4. You should be able to see lots of prints like:\r\n 'file ... was opened!'ghprbCommentBody[buildbot, test this please]ghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113Started by upstream project "bcc-pr" build number 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