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Re: [RFC] perf-cache command interface design

From: David Ahern <dsahern at gmail dot com>
To: Peter Zijlstra <peterz at infradead dot org>, Masami Hiramatsu <masami dot hiramatsu dot pt at hitachi dot com>
Cc: Hemant Kumar <hemant at linux dot vnet dot ibm dot com>, Namhyung Kim <namhyung at kernel dot org>, Arnaldo Carvalho de Melo <acme at redhat dot com>, linux-kernel at vger dot kernel dot org, srikar at linux dot vnet dot ibm dot com, oleg at redhat dot com, hegdevasant at linux dot vnet dot ibm dot com, mingo at redhat dot com, systemtap at sourceware dot org, aravinda at linux dot vnet dot ibm dot com, penberg at iki dot fi, brendan dot d dot gregg at gmail dot com, "yrl dot pp-manager dot tt at hitachi dot com" <yrl dot pp-manager dot tt at hitachi dot com>
Date: Fri, 07 Nov 2014 08:16:09 -0700
Subject: Re: [RFC] perf-cache command interface design
Authentication-results: sourceware.org; auth=none
References: <20141102105006 dot 21708 dot 28734 dot stgit at hemant-fedora> <20141102105557 dot 21708 dot 19032 dot stgit at hemant-fedora> <87lhnr5sbl dot fsf at sejong dot aot dot lge dot com> <54588905 dot 7040002 at linux dot vnet dot ibm dot com> <5458CD15 dot 4010101 at hitachi dot com> <874muew2hk dot fsf at sejong dot aot dot lge dot com> <5459E865 dot 6050207 at hitachi dot com> <545B1DDE dot 9000202 at linux dot vnet dot ibm dot com> <545C80F4 dot 4020905 at hitachi dot com> <20141107084211 dot GC23531 at worktop dot programming dot kicks-ass dot net>

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 othercaches getting discussed.


David

Follow-Ups:
- Re: [RFC] perf-cache command interface design
  - From: Arnaldo Carvalho de Melo

References:
- [PATCH v4 0/5] perf/sdt: SDT events listing/probing
  - From: Hemant Kumar
- [PATCH v4 5/5] perf/sdt: Add support to perf record to trace SDT events
  - From: Hemant Kumar
- Re: [PATCH v4 5/5] perf/sdt: Add support to perf record to trace SDT events
  - From: Namhyung Kim
- Re: [PATCH v4 5/5] perf/sdt: Add support to perf record to trace SDT events
  - From: Hemant Kumar
- Re: Re: [PATCH v4 5/5] perf/sdt: Add support to perf record to trace SDT events
  - From: Masami Hiramatsu
- Re: [PATCH v4 5/5] perf/sdt: Add support to perf record to trace SDT events
  - From: Namhyung Kim
- Re: Re: [PATCH v4 5/5] perf/sdt: Add support to perf record to trace SDT events
  - From: Masami Hiramatsu
- Re: [PATCH v4 5/5] perf/sdt: Add support to perf record to trace SDT events
  - From: Hemant Kumar
- [RFC] perf-cache command interface design
  - From: Masami Hiramatsu
- Re: [RFC] perf-cache command interface design
  - From: Peter Zijlstra

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