Re: [PATCH 0/9] sched_clock fixes

From: Peter Zijlstra
Date: Tue Apr 25 2017 - 09:45:15 EST


On Tue, Apr 25, 2017 at 09:31:40AM +0000, Lofstedt, Marta wrote:
> Hi Peterz,
>
> I tested your patch-set on the same Core2 machine as where we discovered the regression.
> With the tsc=unstable boot param that passrate has improved significantly; 350 fails -> 15 fails.

So is that the same as before, or still worse? I don't really have a
handle on what your benchmark is here, nor what how 'good' is defined.

If its still worse than before, I'm completely confused. Because with
"tsc=unstable" the patch you fingered is a complete no-op (__gtod_offset
== 0).