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Date: Fri, 1 Feb 2013 03:04:11 -0800 From: tip-bot for Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com> To: linux-tip-commits@...r.kernel.org Cc: acme@...hat.com, linux-kernel@...r.kernel.org, eranian@...gle.com, paulus@...ba.org, mingo@...hat.com, hpa@...or.com, mingo@...nel.org, a.p.zijlstra@...llo.nl, jolsa@...hat.com, robert.richter@....com, anton@....ibm.com, ak@...ux.intel.com, tglx@...utronix.de, sukadev@...ux.vnet.ibm.com Subject: [tip:perf/core] perf: Document the ABI of perf sysfs entries Commit-ID: 2ac3634a7e1c8eedc961030c87c5c36ebd5bbf8e Gitweb: http://git.kernel.org/tip/2ac3634a7e1c8eedc961030c87c5c36ebd5bbf8e Author: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com> AuthorDate: Tue, 22 Jan 2013 22:26:45 -0800 Committer: Arnaldo Carvalho de Melo <acme@...hat.com> CommitDate: Thu, 31 Jan 2013 13:07:51 -0300 perf: Document the ABI of perf sysfs entries This patchset addes two new sets of files to sysfs for POWER architecture. - perf event config format in /sys/devices/cpu/format/event - generic and POWER-specific perf events in /sys/devices/cpu/events/ The format of the first file is already documented in: sysfs-bus-event_source-devices-format Document the format of the second set of files '/sys/devices/cpu/events/*' which would also become part of the ABI. Changelog[v4]: [Jiri Olsa]: Mention that multiple event= like terms can be specified in the 'events' file. [Jiri Olsa]: Remove the documentation for the 'config format' file as it is already documented in 'Documentation/ABI/testing/'. [Jiri Olsa]: Move ABI documentation from 'stable/' to 'testing/' Changelog[v3]: [Greg KH] Include ABI documentation. Signed-off-by: Sukadev Bhattiprolu <sukadev@...ux.vnet.ibm.com> Acked-by: Jiri Olsa <jolsa@...hat.com> Cc: Andi Kleen <ak@...ux.intel.com> Cc: Anton Blanchard <anton@....ibm.com> Cc: Ingo Molnar <mingo@...hat.com> Cc: Jiri Olsa <jolsa@...hat.com> Cc: Paul Mackerras <paulus@...ba.org> Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl> Cc: Robert Richter <robert.richter@....com> Cc: Stephane Eranian <eranian@...gle.com> Cc: linuxppc-dev@...abs.org Link: http://lkml.kernel.org/r/20130123062645.GG13720@us.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com> --- .../testing/sysfs-bus-event_source-devices-events | 62 ++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/Documentation/ABI/stable/sysfs-devices-cpu-events b/Documentation/ABI/stable/sysfs-devices-cpu-events deleted file mode 100644 index e69de29..0000000 diff --git a/Documentation/ABI/testing/sysfs-bus-event_source-devices-events b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events new file mode 100644 index 0000000..0adeb52 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-event_source-devices-events @@ -0,0 +1,62 @@ +What: /sys/devices/cpu/events/ + /sys/devices/cpu/events/branch-misses + /sys/devices/cpu/events/cache-references + /sys/devices/cpu/events/cache-misses + /sys/devices/cpu/events/stalled-cycles-frontend + /sys/devices/cpu/events/branch-instructions + /sys/devices/cpu/events/stalled-cycles-backend + /sys/devices/cpu/events/instructions + /sys/devices/cpu/events/cpu-cycles + +Date: 2013/01/08 + +Contact: Linux kernel mailing list <linux-kernel@...r.kernel.org> + +Description: Generic performance monitoring events + + A collection of performance monitoring events that may be + supported by many/most CPUs. These events can be monitored + using the 'perf(1)' tool. + + The contents of each file would look like: + + event=0xNNNN + + where 'N' is a hex digit and the number '0xNNNN' shows the + "raw code" for the perf event identified by the file's + "basename". + + +What: /sys/devices/cpu/events/PM_LD_MISS_L1 + /sys/devices/cpu/events/PM_LD_REF_L1 + /sys/devices/cpu/events/PM_CYC + /sys/devices/cpu/events/PM_BRU_FIN + /sys/devices/cpu/events/PM_GCT_NOSLOT_CYC + /sys/devices/cpu/events/PM_BRU_MPRED + /sys/devices/cpu/events/PM_INST_CMPL + /sys/devices/cpu/events/PM_CMPLU_STALL + +Date: 2013/01/08 + +Contact: Linux kernel mailing list <linux-kernel@...r.kernel.org> + Linux Powerpc mailing list <linuxppc-dev@...abs.org> + +Description: POWER-systems specific performance monitoring events + + A collection of performance monitoring events that may be + supported by the POWER CPU. These events can be monitored + using the 'perf(1)' tool. + + These events may not be supported by other CPUs. + + The contents of each file would look like: + + event=0xNNNN + + where 'N' is a hex digit and the number '0xNNNN' shows the + "raw code" for the perf event identified by the file's + "basename". + + Further, multiple terms like 'event=0xNNNN' can be specified + and separated with comma. All available terms are defined in + the /sys/bus/event_source/devices/<dev>/format file. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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