[Kernel-packages] [Bug 1381805] [NEW] 'man perf-stat' has bad notation for specifying multiple events of interest
Public bug reported: The SYNOPSIS in the manpage of perf-stat(1) says: perf stat [-e | --event=EVENT] [-a] where -e specifies events of interest: -e, --event= Select the PMU event. Selection can be a symbolic event name (use perf list to list all events) or a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a hexadecimal event descriptor. Nowhere in the manpage does it say how to specify multiple events, or even whether that is possible. A strict reading of the syntax would suggest that it actually *isn't* possible. Now, it's not hard to guess: either 'perf -e event1 -e event2 ...' or 'perf -e event1,event2' seems to work, but this should be specified explicitly. Perhaps something like -e, --event= Select the PMU event. Selection can be a symbolic event name (use perf list to list all events) or a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a hexadecimal event descriptor. Multiple events can be specified either as a comma-separated list or as multiple -e options. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-tools-generic 3.13.0.37.44 ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6 Uname: Linux 3.13.0-36-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.5 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: edriscoll 2480 F pulseaudio /dev/snd/pcmC1D0p: edriscoll 2480 F...m pulseaudio /dev/snd/controlC0: edriscoll 2480 F pulseaudio CurrentDesktop: GNOME Date: Wed Oct 15 17:40:03 2014 HibernationDevice: RESUME=/dev/mapper/md126p4_crypt IwConfig: lono wireless extensions. em1 no wireless extensions. MachineType: Hewlett-Packard HP Z220 CMT Workstation ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-36-generic.efi.signed root=UUID=4977c0ff-3e3b-46ec-8514-7b53d26fe4df ro splash quiet nomdmonddf nomdmonisw vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-36-generic N/A linux-backports-modules-3.13.0-36-generic N/A linux-firmware 1.127.7 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/16/2013 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: K51 v01.61 dmi.board.asset.tag: 2UA3310KB0 dmi.board.name: 1790 dmi.board.vendor: Hewlett-Packard dmi.chassis.asset.tag: 2UA3310KB0 dmi.chassis.type: 6 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrK51v01.61:bd05/16/2013:svnHewlett-Packard:pnHPZ220CMTWorkstation:pvr:rvnHewlett-Packard:rn1790:rvr:cvnHewlett-Packard:ct6:cvr: dmi.product.name: HP Z220 CMT Workstation dmi.sys.vendor: Hewlett-Packard ** Affects: linux (Ubuntu) Importance: Undecided Status: Incomplete ** Tags: amd64 apport-bug trusty ** Attachment removed: "AlsaInfo.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237695/+files/AlsaInfo.txt ** Attachment removed: "BootDmesg.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237696/+files/BootDmesg.txt ** Attachment removed: "CRDA.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237697/+files/CRDA.txt ** Attachment removed: "CurrentDmesg.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237698/+files/CurrentDmesg.txt ** Attachment removed: "PulseList.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237705/+files/PulseList.txt ** Attachment removed: "ProcModules.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237704/+files/ProcModules.txt ** Attachment removed: "UdevDb.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237706/+files/UdevDb.txt ** Attachment removed: "ProcInterrupts.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237703/+files/ProcInterrupts.txt ** Attachment removed: "Lspci.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237700/+files/Lspci.txt ** Attachment removed: "UdevLog.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237707/+files/UdevLog.txt ** Attachment removed: "ProcCpuinfo.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237702/+files/ProcCpuinfo.txt ** Attachment removed: "Lsusb.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237701/+files/Lsusb.txt ** Attachment removed: "WifiSyslog.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237708/+files/WifiSyslog.txt ** Attachment removed: "Dependencies.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+attachment/4237699/+fil
[Kernel-packages] [Bug 1381805] Re: 'man perf-stat' has bad notation for specifying multiple events of interest
I removed the log files because they contained what I considered private information, like what programs I'm running. Anyway, this is a simple documentation bug so there shouldn't be any diagnosis your logs would help with anyway, aside from knowing the package information 'linux-tools-generic 3.13.0.37.44' which is included in the main text. Setting to confirmed. ** Changed in: linux (Ubuntu) Status: Incomplete => Confirmed -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1381805 Title: 'man perf-stat' has bad notation for specifying multiple events of interest Status in “linux” package in Ubuntu: Confirmed Bug description: The SYNOPSIS in the manpage of perf-stat(1) says: perf stat [-e | --event=EVENT] [-a] where -e specifies events of interest: -e, --event= Select the PMU event. Selection can be a symbolic event name (use perf list to list all events) or a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a hexadecimal event descriptor. Nowhere in the manpage does it say how to specify multiple events, or even whether that is possible. A strict reading of the syntax would suggest that it actually *isn't* possible. Now, it's not hard to guess: either 'perf -e event1 -e event2 ...' or 'perf -e event1,event2' seems to work, but this should be specified explicitly. Perhaps something like -e, --event= Select the PMU event. Selection can be a symbolic event name (use perf list to list all events) or a raw PMU event (eventsel+umask) in the form of rNNN where NNN is a hexadecimal event descriptor. Multiple events can be specified either as a comma-separated list or as multiple -e options. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-tools-generic 3.13.0.37.44 ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6 Uname: Linux 3.13.0-36-generic x86_64 ApportVersion: 2.14.1-0ubuntu3.5 Architecture: amd64 AudioDevicesInUse: USERPID ACCESS COMMAND /dev/snd/controlC1: edriscoll 2480 F pulseaudio /dev/snd/pcmC1D0p: edriscoll 2480 F...m pulseaudio /dev/snd/controlC0: edriscoll 2480 F pulseaudio CurrentDesktop: GNOME Date: Wed Oct 15 17:40:03 2014 HibernationDevice: RESUME=/dev/mapper/md126p4_crypt IwConfig: lono wireless extensions. em1 no wireless extensions. MachineType: Hewlett-Packard HP Z220 CMT Workstation ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR= LANG=en_US.UTF-8 SHELL=/bin/bash ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-36-generic.efi.signed root=UUID=4977c0ff-3e3b-46ec-8514-7b53d26fe4df ro splash quiet nomdmonddf nomdmonisw vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-36-generic N/A linux-backports-modules-3.13.0-36-generic N/A linux-firmware 1.127.7 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/16/2013 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: K51 v01.61 dmi.board.asset.tag: 2UA3310KB0 dmi.board.name: 1790 dmi.board.vendor: Hewlett-Packard dmi.chassis.asset.tag: 2UA3310KB0 dmi.chassis.type: 6 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrK51v01.61:bd05/16/2013:svnHewlett-Packard:pnHPZ220CMTWorkstation:pvr:rvnHewlett-Packard:rn1790:rvr:cvnHewlett-Packard:ct6:cvr: dmi.product.name: HP Z220 CMT Workstation dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1381805/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
