[PATCH 3/4] perf/timer: add document

[Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>]

Add document for 'perf timer'

Signed-off-by: Xiao Guangrong <xiaoguangrong@cn.fujitsu.com>
---
 tools/perf/Documentation/perf-timer.txt |   40 +++++++++++++++++++++++++++++++
 1 files changed, 40 insertions(+), 0 deletions(-)
 create mode 100644 tools/perf/Documentation/perf-timer.txt

diff --git a/tools/perf/Documentation/perf-timer.txt b/tools/perf/Documentation/perf-timer.txt
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+perf-timer(1)
+==============
+
+NAME
+----
+perf-timer - Tool to trace/measure kernel timer properties
+
+SYNOPSIS
+--------
+[verse]
+'perf timer' {record|latency} [<options>]
+
+DESCRIPTION
+-----------
+There are two variants of perf timer:
+
+  'perf timer record <command>' to record the timer events
+  of an arbitrary workload.
+
+  'perf timer latency' to report kernel timer latency and
+  timer function handle time.
+
+OPTIONS
+-------
+-D::
+--dump-raw-trace=::
+        Display verbose dump of the sched data.
+
+-i <file>::
+--input=<file>::
+	Select the input file (default: perf.data)
+
+-s <key[,key2...]>::
+--sort=<key[,key2...]>::
+	Sort the output (default: timer, type, avg-timer-latency,
+	max-timer-latency, avg-handle-time, max-handle-time)
+
+SEE ALSO
+--------
+linkperf:perf-record[1]
-- 
1.6.1.2