Re: perf_event: rdpmc self-monitoring overhead issue

From: Andi Kleen
Date: Mon Sep 02 2013 - 05:23:22 EST


On Mon, Sep 02, 2013 at 10:24:13AM +0200, Stephane Eranian wrote:
> On Mon, Sep 2, 2013 at 4:50 AM, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
> > Stephane Eranian <eranian@xxxxxxxxxxxxxx> writes:
> >
> >> I don't see a flag in mmap() to fault it in immediately.
> >
> > MAP_PRESENT
> >
> I could not find this constant defined anywhere in the kernel source tree
> nor in /usr/include. Are you sure of the name?

MAP_POPULATE sorry

-Andi

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