Messages in this thread | | | Date | Tue, 1 Dec 2009 02:14:59 -0800 | From | Arjan van de Ven <> | Subject | Re: [PATCH RFC] [X86] Compile Option Os versus O2 on latest x86 platform |
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On Tue, 1 Dec 2009 16:54:04 +0800 "Ma, Ling" <ling.ma@intel.com> 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
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