linux-kernel - Re: [PATCHv3 0/6] perf, tool: Allow to use hw events in PMU syntax

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Date:	Wed, 8 Aug 2012 14:42:14 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	acme@...hat.com, a.p.zijlstra@...llo.nl, mingo@...e.hu,
	paulus@...ba.org, cjashfor@...ux.vnet.ibm.com, fweisbec@...il.com,
	eranian@...gle.com
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCHv3 0/6] perf, tool: Allow to use hw events in PMU syntax

On Mon, Jul 09, 2012 at 10:37:44PM +0200, Jiri Olsa wrote:
> hi,
> here's the change to make following syntax available:
>   perf stat -e cpu/event=instructions/u ls
> 
> this is identical to:
>   perf stat -e instructions:u ls
> 
> v3 changes:
>   - patches v2 1,5,6,9 are already in
>   - patch 1 - sysfs 'events' attribute file names with dashes '-'
>             - using 'event/umask/inv/cmask' terms assigments instead simple 'config'
>   - patch 2 - undefined events sysfs attributes filtered out
> 
> v2 changes:
>   - making the hw events translations available under the 'events',
>     the userspace trnaslation is then done by existing term aliasing
>     code with some little tweeks ;)
>   - patches 1-3 are independent fixies
> 
> Attached patches:
>   1/6 perf, x86: Making hardware events translations available in sysfs
>   2/6 perf, x86: Filter out undefined events from sysfs events attribute
>   3/6 perf, tool: Fix pmu object alias initialization
>   4/6 perf, tool: Properly free format data
>   5/6 perf, tool: Add support to specify hw event as pmu event term
>   6/6 perf, test: Add automated tests for pmu sysfs translated events
> 
> jirka
> ---
>  arch/x86/kernel/cpu/perf_event.c    |   98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
>  tools/perf/util/parse-events-test.c |   75 +++++++++++++++++++++++++++++++++++++++++++++++--
>  tools/perf/util/parse-events.c      |   13 +++++++++
>  tools/perf/util/parse-events.h      |    2 ++
>  tools/perf/util/parse-events.y      |    9 ++++++
>  tools/perf/util/pmu.c               |   59 ++++++++++++++++++++++++---------------
>  6 files changed, 232 insertions(+), 24 deletions(-)

hi,
any feedback on this?
you can check rebased version (on Arnaldo's perf/core) here:

git://git.kernel.org/pub/scm/linux/kernel/git/jolsa/linux.git
perf/sysfs_events1

thanks,
jirka
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