linux-kernel - Re: [PATCH 1/2 -tip] perf_counter: Add generalized hardware vectored co-processor support for AMD and Intel Corei7/Nehalem

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Date:	Fri, 03 Jul 2009 15:40:45 +0530
From:	Jaswinder Singh Rajput <jaswinder@...nel.org>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	Paul Mackerras <paulus@...ba.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Anton Blanchard <anton@...ba.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	x86 maintainers <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH 1/2 -tip] perf_counter: Add generalized hardware
 vectored co-processor support for AMD and Intel Corei7/Nehalem

On Fri, 2009-07-03 at 11:30 +0200, Ingo Molnar wrote:
> * Jaswinder Singh Rajput <jaswinder@...nel.org> wrote:
> 
> > > $ ./perf list shows vector events like :
> > > 
> > >   vec-adds OR add                          [Hardware vector event]
> > >   vec-muls OR multiply                     [Hardware vector event]
> > >   vec-divs OR divide                       [Hardware vector event]
> > >   vec-idle-cycles OR vec-empty-cycles      [Hardware vector event]
> > >   vec-stall-cycles OR vec-busy-cycles      [Hardware vector event]
> > >   vec-ops OR vec-operations                [Hardware vector event]
> 
> btw., why does this printout SHOUT the 'or'? It's certainly not an 
> important piece of information. Something like:
> 
>    vec-adds | add                          [Hardware vector event]
>    vec-muls | multiply                     [Hardware vector event]
>    vec-divs | divide                       [Hardware vector event]
>    vec-idle-cycles | vec-empty-cycles      [Hardware vector event]
>    vec-stall-cycles | vec-busy-cycles      [Hardware vector event]
>    vec-ops | vec-operations                [Hardware vector event]
> 
> looks better on all levels.
> 

'OR' is also used for other events.
If this is the only issue, I request you to accept these 2 patches.

I will send incremental patch which will fix these 'OR's and also avoid
duplicating of these functions.

Thanks,
--
JSR

http://userweb.kernel.org/~jaswinder/


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