Re: [perf] 06e0dbcfd3: phoronix-test-suite.mbw.0.mib_s 12.6% improvement

From: Andi Kleen
Date: Sun Oct 27 2019 - 12:32:57 EST


On Sun, Oct 27, 2019 at 01:18:12PM +0800, kernel test robot wrote:
> Greeting,
>
> FYI, we noticed a 12.6% improvement of phoronix-test-suite.mbw.0.mib_s due to commit:

Wow! Sadly it's a false positive, from lowering perf overhead, instead
of improving the workload. Still seems like a good thing.

Note that there is a perf user tool change coming soon that will likely
improve it even more (using affiity to optimize all perf IPIs).

-Andi