Re: [PATCH] sched: fix sched_feat for !SCHED_DEBUG builds

[Peter Zijlstra]

On Tue, Nov 07, 2017 at 04:06:58PM +0000, Patrick Bellasi wrote:
> For this mechanism to properly work it's required for the compiler to
> have full access, from each translation unit, to whatever is the value
> defined by the sched_feat macro. 

> Statistics on the reported completion time:
> 
>                  count     mean       std     min       99%     max
> v4.14-rc8         30.0  15.7831  0.176032  15.442  16.01226  16.014
> v4.14-rc8+patch   30.0  15.5033  0.189681  15.232  15.93938  15.962
> 
> show a 1.8% speedup on average completion time and 0.5% speedup in the
> 99 percentile.
> 

Ack