Re: [RFC PATCH v5 0/7] Tunable sched_mc_power_savings=n

[Pavel Machek]

> Results:
> --------
> 
> Basic functionality of the code has not changed and the power vs
> performance benefits for kernbench are similar to the ones posted
> earlier.
> 
> KERNBENCH Runs: make -j4 on a x86 8 core, dual socket quad core cpu
> package system
> 
> SchedMC Run Time     Package Idle    Energy  Power
> 0	81.28	     52.43% 53.53%  1.00x J 1.00y W
> 1	80.71	     37.35% 68.91%  0.96x J 0.97y W
> 2	76.05	     23.81% 82.65%  0.92x J 0.98y W
> 
> *** This is RFC code and not for inclusion ***

Hmm, so it makes it compile faster _and_ it saves power? Why to keep
it tunable at all if it is win-win? Or are there other benchmarks?

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/