Explain how to query particular config items in config file
and how to get several config items from user or system config file
using '--user' or '--system' options.
Cc: Namhyung Kim <namhy...@kernel.org>
Cc: Jiri Olsa <jo...@kernel.org>
Cc: Wang Nan <wangn...@huawei.com>
Signed-off-by: Taeung Song <treeze.tae...@gmail.com>
---
tools/perf/Documentation/perf-config.txt | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/tools/perf/Documentation/perf-config.txt
b/tools/perf/Documentation/perf-config.txt
index cb081ac5..1714b0c 100644
--- a/tools/perf/Documentation/perf-config.txt
+++ b/tools/perf/Documentation/perf-config.txt
@@ -8,6 +8,8 @@ perf-config - Get and set variables in a configuration file.
SYNOPSIS
--------
[verse]
+'perf config' [<file-option>] [section.name ...]
+or
'perf config' [<file-option>] -l | --list
DESCRIPTION
@@ -118,6 +120,22 @@ Given a $HOME/.perfconfig like this:
children = true
group = true
+To query the record mode of call graph, do
+
+ % perf config call-graph.record-mode
+
+If you want to know multiple config key/value pairs, you can do like
+
+ % perf config report.queue-size call-graph.order report.children
+
+To query the config value of sort order of call graph in user config file
(i.e. `~/.perfconfig`), do
+
+ % perf config --user call-graph.sort-order
+
+To query the config value of buildid directory in system config file (i.e.
`$(sysconf)/perfconfig`), do
+
+ % perf config --system buildid.dir
+
Variables
~~~~~~~~~
--
2.7.4
