linux-kernel - Re: [RFC] perf-cache command interface design

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Message-ID: <545CE239.6050205@gmail.com>
Date:	Fri, 07 Nov 2014 08:16:09 -0700
From:	David Ahern <dsahern@...il.com>
To:	Peter Zijlstra <peterz@...radead.org>,
	Masami Hiramatsu <masami.hiramatsu.pt@...achi.com>
CC:	Hemant Kumar <hemant@...ux.vnet.ibm.com>,
	Namhyung Kim <namhyung@...nel.org>,
	Arnaldo Carvalho de Melo <acme@...hat.com>,
	linux-kernel@...r.kernel.org, srikar@...ux.vnet.ibm.com,
	oleg@...hat.com, hegdevasant@...ux.vnet.ibm.com, mingo@...hat.com,
	systemtap@...rceware.org, aravinda@...ux.vnet.ibm.com,
	penberg@....fi, brendan.d.gregg@...il.com,
	"yrl.pp-manager.tt@...achi.com" <yrl.pp-manager.tt@...achi.com>
Subject: Re: [RFC] perf-cache command interface design

On 11/7/14, 1:42 AM, Peter Zijlstra wrote:
> On Fri, Nov 07, 2014 at 05:21:08PM +0900, Masami Hiramatsu wrote:
>> The paths of buildid cache of binary/symbols are not changed.
>
> Could we get an option in .perfconfig to disable the buildid cache? Its
> pointless diskspace wastage for some of us.

I was going to respond with the same. This:

[buildid]
    # Default, disable using /dev/null
    dir = /dev/null

disables the build-id cache. Hopefully that extends to all the other 
caches getting discussed.

David
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