Re: [PATCH v7 07/18] perf: add generic memory sampling interface

From: Ingo Molnar
Date: Sat Feb 16 2013 - 03:41:35 EST



* Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx> wrote:

> On Fri, 2013-02-15 at 11:46 -0800, Sukadev Bhattiprolu wrote:
> >
> > POWER could use an additional field:
> >
> > mem_deratmiss:1
>
> If you want to make that field more "generic" make it
> "lvl1_tlb_miss", ie, a miss in the internal "level 1" TLB
> which is the smallest/fastest TLB level in the load/store
> unit.

I'd also suggest adding spare bits generously, if this is a
fixed width ABI component - or a size field.

Thanks,

Ingo
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