linux-kernel - Re: [PATCH 2/3] perf: Add support for extra parameters for raw events

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Date:	Thu, 11 Nov 2010 09:54:37 -0800
From:	Corey Ashford <cjashfor@...ux.vnet.ibm.com>
To:	Andi Kleen <andi@...stfloor.org>
CC:	linux-kernel@...r.kernel.org, fweisbec@...il.com,
	a.p.zijlstra@...llo.nl, mingo@...e.hu, acme@...hat.com,
	eranian@...gle.com, Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 2/3] perf: Add support for extra parameters for raw events

On 11/11/2010 08:15 AM, Andi Kleen wrote:
> From: Andi Kleen<ak@...ux.intel.com>
>
> Add support to the perf tool to specify extra values for raw events
> and pass them to the kernel.
>
> The new format is -e rXXXX[,YYYY]

It's not clear to me that a comma is the best character to use in this 
instance, because multiple events can be listed after the -e separated 
by commas as well, for example:  -e rXXXX,cycles.
-e rXXXX,YYYY,cycles would be confusing to read.

How about -e rXXXX[+YYYY]

- Corey
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