linux-kernel - Re: [PATCH 2/2] perf tools: Add a option 'remove' to perf-config and features which get or set a config variable.

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Message-ID: <20150410093136.GB31326@krava.brq.redhat.com>
Date:	Fri, 10 Apr 2015 11:31:36 +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,
	linux-perf-users@...r.kernel.org
Subject: Re: [PATCH 2/2] perf tools: Add a option 'remove' to perf-config and
 features which get or set a config variable.

On Thu, Apr 09, 2015 at 11:26:31PM +0900, Taeung Song wrote:
> This patch consists of adding functions
> which get, set or remove a specific config variable.
> For the syntax examples,
> 
>     perf config [options] [section.subkey[=value]]
> 
>     display all perf config with default values
>     # perf config
>     or
>     # perf config -a | --all

so this is ^^^ what the previous patch does right?

> 
>     display a specific key(section.subkey) and value
>     # perf config report.queue
> 
>     set a specific key and value
>     # perf config report.queue=100M
> 
>     remove a specific key
>     # perf config -r | --remove report.queue

haven't checked the code but:

  [jolsa@...va perf]$ ./perf config krava=true
  The config variable does not contain a section: krava=true[jolsa@...va perf]$ 

missing '\n'

we can set anything now:
  [jolsa@...va perf]$ ./perf config krava.krava=true

the restriction for only known keys would need similar stuff like
for the '-a' option I asked in the previous email right?

jirka
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