GitHub pull request #3688 of commit b98954a526c3415a43160df8043a1d410aba5b20, no merge conflicts.sha1origin/pr/3688/mergeghprbActualCommitb98954a526c3415a43160df8043a1d410aba5b20ghprbActualCommitAuthorBarret RhodenghprbActualCommitAuthorEmailbrho@google.comghprbAuthorRepoGitUrlhttps://github.com/brho/bcc.gitghprbTriggerAuthorDave MarchevskyghprbTriggerAuthorEmaildavemarchevsky@gmail.comghprbTriggerAuthorLogindavemarchevskyghprbTriggerAuthorLoginMention@davemarchevskyghprbPullId3688ghprbTargetBranchmasterghprbSourceBranchmasterGIT_BRANCHmasterghprbPullAuthorEmailghprbPullAuthorLoginbrhoghprbPullAuthorLoginMention@brhoghprbPullDescriptionGitHub pull request #3688 of commit b98954a526c3415a43160df8043a1d410aba5b20, no merge conflicts.ghprbPullTitlelibbpf-tools: add klockstatghprbPullLinkhttps://github.com/iovisor/bcc/pull/3688ghprbPullLongDescriptionThis is a port of BCC's klockstat. Differences from BCC:\r\n- can specify a lock by ksym name, using -L\r\n- tracks whichever task had the max time for acquire and hold, outputted\r\nwhen -s > 1 (otherwise it's cluttered).\r\n- does not reset stats each interval by default. Can request with -R.\r\n\r\n-------------\r\nUsage: klockstat [-hRT] [-p PID] [-t TID] [-c FUNC] [-L LOCK] [-n NR_LOCKS]\r\n [-s NR_STACKS] [-S SORT] [-d DURATION] [-i INTERVAL]\r\n\r\n -p, --pid=PID Filter by process ID\r\n -t, --tid=TID Filter by thread ID\r\n -c, --caller=FUNC Filter by caller string prefix\r\n -L, --lock=LOCK Filter by specific ksym lock name\r\n -n, --locks=NR_LOCKS Number of locks to print\r\n -s, --stacks=NR_STACKS Number of stack entries to print per lock\r\n -S, --sort=SORT Sort by field:\r\n acq_[max|total|count]\r\n hld_[max|total|count]\r\n -d, --duration=SECONDS Duration to trace\r\n -i, --interval=SECONDS Print interval\r\n -R, --reset Reset stats each interval\r\n -T, --timestamp Print timestamp\r\n\r\n -?, --help Give this help list\r\n --usage Give a short usage message\r\n -V, --version Print program version\r\n\r\nMandatory or optional arguments to long options are also mandatory or optional\r\nfor any corresponding short options.\r\n\r\nExamples:\r\n klockstat # trace system wide until ctrl-c\r\n klockstat -d 5 # trace for 5 seconds\r\n klockstat -i 5 # print stats every 5 seconds\r\n klockstat -p 181 # trace process 181 only\r\n klockstat -t 181 # trace thread 181 only\r\n klockstat -c pipe_ # print only for lock callers with 'pipe_'\r\n # prefix\r\n klockstat -L cgroup_mutex # trace the cgroup_mutex lock only\r\n klockstat -S acq_count # sort lock acquired results by acquire count\r\n klockstat -S hld_total # sort lock held results by total held time\r\n klockstat -S acq_count,hld_total # combination of above\r\n klockstat -n 3 # display top 3 locks\r\n klockstat -s 6 # display 6 stack entries per lock\r\n\r\n-------------\r\n\r\nSigned-off-by: Barret Rhoden <brho@google.com>ghprbCommentBodynullghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="libbpf-tools: add klockstat" href="https://github.com/iovisor/bcc/pull/3688">PR #3688</a>: libbpf-tools: add klockstat#121595974567460664bcc-pr #12151215false12159715ABORTED1636565453223https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/1215/git1210https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=fc25/1210/1210https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=fc26/1210/1210https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=fc27/1210/1210https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=fc28/1210/1210https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=ubuntu1604/1210/1210https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=ubuntu1710/1210/1210https://buildbot.iovisor.org/jenkins/user/danobi/my-views/view/all/job/bcc-pr/label=ubuntu1804/1210/