Re: [PATCH RFC] [X86] Compile Option Os versus O2 on latest x86platform

[Arjan van de Ven]

On Tue, 1 Dec 2009 16:54:04 +0800
"Ma, Ling" <ling.ma@xxxxxxxxx> wrote:

> Hi Ingo
> 
> Thanks for your correction, so we use perf stat --repeat 3 to test
> volano, tbench, and kbuild, Because netperf has multiple items we may
> send out later.

a key question is.. how much more memory do you have free due to -Os?
(because memory is cache is performance on a system level as well)
and how much less icache pressure is there?


-- 
Arjan van de Ven 	Intel Open Source Technology Centre
For development, discussion and tips for power savings, 
visit http://www.lesswatts.org
--
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/