From: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
To: Peter Zijlstra <a.p.zijlstra@chello.nl>,
Paul Mackerras <paulus@samba.org>, Ingo Molnar <mingo@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>,
robert.richter@amd.com, Anton Blanchard <anton@au1.ibm.com>,
linux-kernel@vger.kernel.org,
Stephane Eranian <eranian@google.com>,
linuxppc-dev@ozlabs.org,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
Jiri Olsa <jolsa@redhat.com>
Subject: [PATCH 6/6][v4]: perf: Document the ABI of perf sysfs entries
Date: Tue, 22 Jan 2013 22:26:45 -0800 [thread overview]
Message-ID: <20130123062645.GG13720@us.ibm.com> (raw)
In-Reply-To: <20130123062201.GA13720@us.ibm.com>
[PATCH 6/6][v4]: 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@linux.vnet.ibm.com>
Acked-by: Jiri Olsa <jolsa@redhat.com>
---
.../testing/sysfs-bus-event_source-devices-events | 62 ++++++++++++++++++++
1 files changed, 62 insertions(+), 0 deletions(-)
delete mode 100644 Documentation/ABI/stable/sysfs-devices-cpu-events
create mode 100644 Documentation/ABI/testing/sysfs-bus-event_source-devices-events
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@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.
--
1.7.1
prev parent reply other threads:[~2013-01-23 6:26 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-23 6:22 [PATCH 0/6][v4]: perf: Make POWER7 events available in sysfs Sukadev Bhattiprolu
2013-01-23 6:23 ` [PATCH 1/6][v4]: perf/Power7: Use macros to identify perf events Sukadev Bhattiprolu
2013-01-23 6:24 ` [PATCH 2/6][v4]: perf: Make EVENT_ATTR global Sukadev Bhattiprolu
2013-01-23 6:24 ` [PATCH 3/6][v4]: perf/POWER7: Make generic event translations available in sysfs Sukadev Bhattiprolu
2013-01-23 6:25 ` [PATCH 4/6][v4]: perf/POWER7: Make some POWER7 events " Sukadev Bhattiprolu
2013-01-23 6:26 ` [PATCH 5/6][v4]: perf: Create a sysfs entry for Power event format Sukadev Bhattiprolu
2013-02-26 5:26 ` Michael Ellerman
2013-02-26 20:03 ` Sukadev Bhattiprolu
2013-02-27 1:17 ` Michael Ellerman
2013-03-06 5:48 ` Sukadev Bhattiprolu
2013-03-12 9:27 ` Paul Mackerras
2013-03-13 0:15 ` Michael Ellerman
2013-02-27 1:27 ` Michael Ellerman
2013-01-23 6:26 ` Sukadev Bhattiprolu [this message]
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