linux-kernel - Re: [PATCH 2/2 -tip] perf_counter: parse-events.c introduce alias member in event

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Date:	Mon, 22 Jun 2009 18:53:18 +0530
From:	Jaswinder Singh Rajput <jaswinder@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 2/2 -tip] perf_counter: parse-events.c introduce alias
 member in event_symbol

On Mon, 2009-06-22 at 18:30 +0530, Jaswinder Singh Rajput wrote:
> On Mon, 2009-06-22 at 13:32 +0200, Ingo Molnar wrote:
> 
> > Another nice thing would be for 'perf list' to actually start each 
> > counter and stop it - and see whether it ticks. Perhaps that could 
> > be a new sub-command: 'perf test' ?
> > 
> > New 'perf' subcommands are added easily:
> > 
> > create a new tools/perf/builtin-foo.c file, add it to 
> > command-list.txt and to the Makefile - add it to perf.c's array of 
> > built-in commands and add a Documentation/perf-foo.txt file to 
> > generate manpages and usage strings for it.
> > 
> 
> Ok this is just a ugly quick hack to get the idea what actually you are
> looking for :
> 
> [RFC] perf_counter tools: introduce perf test to test each event for ticks
> 
> perf test to Test all events for whether it ticks
> 
>   $ perf test
> 
>   Performance counter stats for 'test':
> 
>   task-clock-msecs      Tick
>   context-switches      Tick
>   CPU-migrations        Tick
>   page-faults           Tick
>   cycles                Tick
>   instructions          Tick
>   cache-references      Tick
>   cache-misses          Tick
> 
>      0.007693869  seconds time elapsed.

Please let me know should I need to test all events (Hardware +
Software) and/or selective event based on user request.
And what should be output looks like.

Thanks,
--
JSR

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