Re: [sched/fair] 56498cfb04: netperf.Throughput_tps -5.4% regression

From: Peter Zijlstra
Date: Wed Sep 22 2021 - 08:45:45 EST


On Sun, Sep 12, 2021 at 11:34:47PM +0800, kernel test robot wrote:
>
>
> Greeting,
>
> FYI, we noticed a -5.4% regression of netperf.Throughput_tps due to commit:
>
>
> commit: 56498cfb045d7147cdcba33795d19429afcd1d00 ("sched/fair: Avoid a second scan of target in select_idle_cpu")
> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master

Mel, was this in line with your own benchmarks?