Commit-ID: a6005123ce22770dbd91bc3cb637ce0807ab959b
Gitweb: http://git.kernel.org/tip/a6005123ce22770dbd91bc3cb637ce0807ab959b
Author: Tom Zanussi <tzanussi@xxxxxxxxx>
AuthorDate: Tue, 15 Dec 2009 02:53:40 -0600
Committer: Ingo Molnar <mingo@xxxxxxx>
CommitDate: Tue, 15 Dec 2009 10:31:33 +0100
perf trace/scripting: Update Documentation
Update the perf-trace page with new and missing options and
remove some unused ones.
Signed-off-by: Tom Zanussi <tzanussi@xxxxxxxxx>
Cc: fweisbec@xxxxxxxxx
Cc: rostedt@xxxxxxxxxxx
LKML-Reference: <1260867220-15699-7-git-send-email-tzanussi@xxxxxxxxx>
Signed-off-by: Ingo Molnar <mingo@xxxxxxx>
---
tools/perf/Documentation/perf-trace.txt | 27 ++++++++++++++++++++++++++-
1 files changed, 26 insertions(+), 1 deletions(-)
diff --git a/tools/perf/Documentation/perf-trace.txt b/tools/perf/Documentation/perf-trace.txt
index 07065ef..60e5900 100644
--- a/tools/perf/Documentation/perf-trace.txt
+++ b/tools/perf/Documentation/perf-trace.txt
@@ -8,18 +8,43 @@ perf-trace - Read perf.data (created by perf record) and display trace output
SYNOPSIS
--------
[verse]
-'perf trace' [-i <file> | --input=file] symbol_name
+'perf trace' {record <script> | report <script> [args] }
DESCRIPTION
-----------
This command reads the input file and displays the trace recorded.
+There are several variants of perf trace:
+
+ 'perf trace' to see a detailed trace of the workload that was
+ recorded.
+
+ 'perf trace record <script>' to record the events required for 'perf
+ trace report'. <script> is the name displayed in the output of
+ 'perf trace --list' i.e. the actual script name minus any language
+ extension.
+
+ 'perf trace report <script>' to run and display the results of
+ <script>. <script> is the name displayed in the output of 'perf
+ trace --list' i.e. the actual script name minus any language
+ extension. The perf.data output from a previous run of 'perf trace
+ record <script>' is used and should be present for this command to
+ succeed.
+
OPTIONS
-------
-D::
--dump-raw-trace=::
Display verbose dump of the trace data.
+-L::
+--Latency=::
+ Show latency attributes (irqs/preemption disabled, etc).
+
+-l::
+--list=::
+ Display a list of available trace scripts.
+
-s::
--script=::
Process trace data with the given script ([lang]:script[.ext]).
--
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