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>
1.9 KiB
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@vger.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@vger.kernel.org Linux Powerpc mailing list linuxppc-dev@ozlabs.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.