Re: [RFC 6/6] perf build: Introduce FEATURES_DUMP make variable

[Wangnan (F)]

On 2016/1/13 18:03, Jiri Olsa wrote:
> On Wed, Jan 13, 2016 at 05:46:13PM +0800, Wangnan (F) wrote:
>
> SNIP
>
> > > I'll try to check on that.. does this patch help to improve
> > > the current speed or do you need to solve this to get substantial
> > > speedup?

Finished.

On a 24 core machine:

Without this feature, a full build-test takes:

real    21m16.579s
user    176m12.989s
sys    20m54.950s

With this feature:

real    16m0.619s
user    172m53.896s
sys    19m22.777s

Speedup: 24.75%.

So this feature is really useful.

Thank you.