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[PATCH 4/7] perf, tools, stat: Document CSV format in manpage

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From: Andi Kleen <ak@linux.intel.com>

With all the recently added fields in the perf stat CSV output
we should finally document them in the man page. Do this here.

v2: Fix fields in documentation (Jiri)
v3: fix order of fields again (Jiri)
v4: Change order again.
v5: Document more fields (Jiri)
Signed-off-by: Andi Kleen <ak@linux.intel.com>
---
 tools/perf/Documentation/perf-stat.txt | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/tools/perf/Documentation/perf-stat.txt b/tools/perf/Documentation/perf-stat.txt
index 52ef7a9..de1586b 100644
--- a/tools/perf/Documentation/perf-stat.txt
+++ b/tools/perf/Documentation/perf-stat.txt
@@ -211,6 +211,29 @@ $ perf stat -- make -j
 
  Wall-clock time elapsed:   719.554352 msecs
 
+CSV FORMAT
+----------
+
+With -x, perf stat is able to output a not-quite-CSV format output
+Commas in the output are not put into "". To make it easy to parse
+it is recommended to use a different character like -x \;
+
+The fields are in this order:
+
+	- optional CPU, core, or socket identifier 
+	- optional number of cores aggregated
+	- optional usec time stamp in fractions of second (with -I xxx)
+	- counter value
+	- unit of the counter value or empty
+	- event name
+	- run time of counter
+	- percentage of measurement time the counter was running
+	- optional variance if multiple values are collected with -r
+	- optional metric value
+	- optional unit of metric
+
+Additional metrics may be printed with all earlier fields being empty.
+
 SEE ALSO
 --------
 linkperf:perf-top[1], linkperf:perf-list[1]
-- 
2.5.0

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perf, tools: Refactor and support interval and CSV metrics Andi Kleen <andi@firstfloor.org> - 2016-03-01 20:00 +0100
  [PATCH 3/7] perf, tools, stat: Support metrics in --per-core/socket mode Andi Kleen <andi@firstfloor.org> - 2016-03-01 20:00 +0100
  [PATCH 5/7] perf, tools, stat: Implement --metric-only mode Andi Kleen <andi@firstfloor.org> - 2016-03-01 20:00 +0100
    Re: [PATCH 5/7] perf, tools, stat: Implement --metric-only mode Jiri Olsa <jolsa@redhat.com> - 2016-03-02 13:00 +0100
      Re: [PATCH 5/7] perf, tools, stat: Implement --metric-only mode Andi Kleen <andi@firstfloor.org> - 2016-03-02 16:40 +0100
  [PATCH 1/7] perf, tools, stat: Check existence of frontend/backed stalled cycles Andi Kleen <andi@firstfloor.org> - 2016-03-01 20:00 +0100
  [PATCH 4/7] perf, tools, stat: Document CSV format in manpage Andi Kleen <andi@firstfloor.org> - 2016-03-01 20:00 +0100
    Re: [PATCH 4/7] perf, tools, stat: Document CSV format in manpage Jiri Olsa <jolsa@redhat.com> - 2016-03-02 12:30 +0100
  [PATCH 2/7] perf, tools, stat: Implement CSV metrics output Andi Kleen <andi@firstfloor.org> - 2016-03-01 20:10 +0100
  Re: perf, tools: Refactor and support interval and CSV metrics Arnaldo Carvalho de Melo <acme@kernel.org> - 2016-03-01 20:10 +0100

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