GitHub pull request #3380 of commit 9f01524635d2afc1464338270056282c78e1bcf1, no merge conflicts.sha1origin/pr/3380/mergeghprbActualCommit9f01524635d2afc1464338270056282c78e1bcf1ghprbActualCommitAuthorghprbActualCommitAuthorEmailghprbAuthorRepoGitUrlhttps://github.com/netedwardwu/bcc.gitghprbTriggerAuthorghprbTriggerAuthorEmailghprbTriggerAuthorLoginyonghong-songghprbTriggerAuthorLoginMention@yonghong-songghprbPullId3380ghprbTargetBranchmasterghprbSourceBranchmasterGIT_BRANCHmasterghprbPullAuthorEmailghprbPullAuthorLoginnetedwardwughprbPullAuthorLoginMention@netedwardwughprbPullDescriptionGitHub pull request #3380 of commit 9f01524635d2afc1464338270056282c78e1bcf1, no merge conflicts.ghprbPullTitletools/funclatency: Should clear() after display that is what we wantghprbPullLinkhttps://github.com/iovisor/bcc/pull/3380ghprbPullLongDescriptionBUG:\r\nfunclatency memcpy -i 2\r\n nsecs : count distribution\r\n 0 -> 1 : 0 | |\r\n 2 -> 3 : 0 | |\r\n 4 -> 7 : 0 | |\r\n 8 -> 15 : 0 | |\r\n 16 -> 31 : 0 | |\r\n 32 -> 63 : 0 | |\r\n 64 -> 127 : 0 | |\r\n 128 -> 255 : 0 | |\r\n 256 -> 511 : 0 | |\r\n 512 -> 1023 : 0 | |\r\n 1024 -> 2047 : 0 | |\r\n 2048 -> 4095 : 28 |************ |\r\n 4096 -> 8191 : 92 |****************************************|\r\n\r\navg = 4265 nsecs, total: 9413985 nsecs, count: 2207\r\n\r\n nsecs : count distribution\r\n 0 -> 1 : 0 | |\r\n 2 -> 3 : 0 | |\r\n 4 -> 7 : 0 | |\r\n 8 -> 15 : 0 | |\r\n 16 -> 31 : 0 | |\r\n 32 -> 63 : 0 | |\r\n 64 -> 127 : 0 | |\r\n 128 -> 255 : 0 | |\r\n 256 -> 511 : 0 | |\r\n 512 -> 1023 : 0 | |\r\n 1024 -> 2047 : 0 | |\r\n 2048 -> 4095 : 38 |****** |\r\n 4096 -> 8191 : 248 |****************************************|\r\n\r\navg = 4304 nsecs, total: 11066321 nsecs, count: 2571\r\n\r\nAfter long-run, you can see the count above is totally wrong.\r\n\r\nAlso, display together before together clearing is important for better accuracy.\r\n\r\nSigned-off-by: Edward Wu <edwardwu@realtek.com>ghprbCommentBody[buildbot, test this please]ghprbGhRepositoryiovisor/bccghprbCredentialsId6d3daf13-69b8-48b1-9c8f-ec5353264113false<a title="tools/funclatency: Should clear() after display that is what we want" href="https://github.com/iovisor/bcc/pull/3380">PR #3380</a>: tools/funclatency: Should c...#94212920677460664bcc-pr #942942false9427531SUCCESS1619542248043https://buildbot.iovisor.org/jenkins/user/andriin/my-views/view/all/job/bcc-pr/942/git942https://buildbot.iovisor.org/jenkins/user/andriin/my-views/view/all/job/bcc-pr/label=fc25/942/942https://buildbot.iovisor.org/jenkins/user/andriin/my-views/view/all/job/bcc-pr/label=fc26/942/942https://buildbot.iovisor.org/jenkins/user/andriin/my-views/view/all/job/bcc-pr/label=fc27/942/942https://buildbot.iovisor.org/jenkins/user/andriin/my-views/view/all/job/bcc-pr/label=fc28/942/942https://buildbot.iovisor.org/jenkins/user/andriin/my-views/view/all/job/bcc-pr/label=ubuntu1604/942/942https://buildbot.iovisor.org/jenkins/user/andriin/my-views/view/all/job/bcc-pr/label=ubuntu1710/942/942https://buildbot.iovisor.org/jenkins/user/andriin/my-views/view/all/job/bcc-pr/label=ubuntu1804/942/