linux-kernel - Re: [PATCH 2/2] perf tools: Add options 'get', 'set' and 'unset' to 'perf-config'.

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Date:	Tue, 7 Apr 2015 20:06:23 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Taeung Song <treeze.taeung@...il.com>
Cc:	Arnaldo Carvalho de Melo <acme@...nel.org>,
	linux-kernel@...r.kernel.org, namhyung@...nel.org
Subject: Re: [PATCH 2/2] perf tools: Add options 'get', 'set' and 'unset' to
 'perf-config'.

On Sun, Apr 05, 2015 at 02:41:28AM +0900, Taeung Song wrote:
> Add 'get' option that can show value of a specific config variable
> and 'set' and 'unset' option that can create or replace a config variable.

vould you please update the changelog with the new syntax examples?
also Documentation/perf-config.txt wasn't updated

anyway..  any chance we could use syntax here that would follow
the sysctl style?

       sysctl [options] [variable[=value]] [...]
       sysctl -p [file or regexp] [...]

# display current config
perf config

# display current config plus all keys with default values
perf config -a

# display key value:
perf config report.queue

# set key value:
perf config report.queue=100M

# remove key (not in sysctl)
perf config -r report.queue

jirka
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