2ac3634a7e
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@linux.vnet.ibm.com> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Anton Blanchard <anton@au1.ibm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Robert Richter <robert.richter@amd.com> Cc: Stephane Eranian <eranian@google.com> Cc: linuxppc-dev@ozlabs.org Link: http://lkml.kernel.org/r/20130123062645.GG13720@us.ibm.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
63 lines
1.9 KiB
Plaintext
63 lines
1.9 KiB
Plaintext
What: /sys/devices/cpu/events/
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/sys/devices/cpu/events/branch-misses
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/sys/devices/cpu/events/cache-references
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/sys/devices/cpu/events/cache-misses
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/sys/devices/cpu/events/stalled-cycles-frontend
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/sys/devices/cpu/events/branch-instructions
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/sys/devices/cpu/events/stalled-cycles-backend
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/sys/devices/cpu/events/instructions
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/sys/devices/cpu/events/cpu-cycles
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Date: 2013/01/08
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Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
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Description: Generic performance monitoring events
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A collection of performance monitoring events that may be
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supported by many/most CPUs. These events can be monitored
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using the 'perf(1)' tool.
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The contents of each file would look like:
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event=0xNNNN
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where 'N' is a hex digit and the number '0xNNNN' shows the
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"raw code" for the perf event identified by the file's
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"basename".
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What: /sys/devices/cpu/events/PM_LD_MISS_L1
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/sys/devices/cpu/events/PM_LD_REF_L1
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/sys/devices/cpu/events/PM_CYC
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/sys/devices/cpu/events/PM_BRU_FIN
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/sys/devices/cpu/events/PM_GCT_NOSLOT_CYC
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/sys/devices/cpu/events/PM_BRU_MPRED
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/sys/devices/cpu/events/PM_INST_CMPL
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/sys/devices/cpu/events/PM_CMPLU_STALL
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Date: 2013/01/08
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Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
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Linux Powerpc mailing list <linuxppc-dev@ozlabs.org>
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Description: POWER-systems specific performance monitoring events
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A collection of performance monitoring events that may be
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supported by the POWER CPU. These events can be monitored
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using the 'perf(1)' tool.
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These events may not be supported by other CPUs.
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The contents of each file would look like:
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event=0xNNNN
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where 'N' is a hex digit and the number '0xNNNN' shows the
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"raw code" for the perf event identified by the file's
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"basename".
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Further, multiple terms like 'event=0xNNNN' can be specified
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and separated with comma. All available terms are defined in
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the /sys/bus/event_source/devices/<dev>/format file.
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