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Subject: Re: [PATCH] perf: add support for per-event sampling period or
 frequency in perf record
From: Peter Zijlstra <peterz@infradead.org>
To: Stephane Eranian <eranian@google.com>
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Date: Tue, 23 Nov 2010 12:42:39 +0100
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On Tue, 2010-11-23 at 12:33 +0100, Stephane Eranian wrote:
> 
> Forgot to say, that the reason I did it thru -c and -F was to maintain
> backward compatibility. 

Right, we could keep the existing parameters to mean default values for
those events that didn't specify anything.