Re: sysbench throughput degradation in 4.13+

From: Peter Zijlstra
Date: Thu Sep 28 2017 - 08:36:29 EST


On Wed, Sep 27, 2017 at 01:58:20PM -0400, Rik van Riel wrote:
> I like the simplicity of your approach! I hope it does not break
> stuff like netperf...

So the old approach that looks at the weight of the two CPUs behaves
slightly better in the overloaded case. On the threads==nr_cpus load
points they match fairly evenly.

I seem to have misplaced my netperf scripts, but I'll have a play with
it.