Re: [PATCH v2 1/2] perf tools: add event modifier to requestexclusive PMU access

From: Stephane Eranian
Date: Mon Oct 22 2012 - 12:08:01 EST

On Mon, Oct 22, 2012 at 5:59 PM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote:
> On Mon, 2012-10-22 at 17:44 +0200, Stephane Eranian wrote:
>> I know the answer, because I know what's going on under the
>> hood. But what about the average user?
> I'm still wondering if the avg user really thinks 'instructions' is a
> useful metric for other than obtaining ipc measurements.
Yeah, for many users CPI (or IPC) is a useful metric.

> The avg user wants time domain measurements, like what's the most
> expensive function, or most expensive cache-miss etc..
Yes, you have those too.
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