Messages in this thread | | | Date | Thu, 24 Jan 2013 15:46:12 +0100 | From | Borislav Petkov <> | Subject | Re: [Suggestion] [x86]: Compiler Option Os is better on latest x86 |
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On Thu, Jan 24, 2013 at 03:17:33PM +0100, Ingo Molnar wrote: > > So our initial conclusion is Os is better than O2 for current > > & coming x86 CPUs. If I was wrong, please correct me. > > Did you patch the kernel, or used CONFIG_CC_OPTIMIZE_FOR_SIZE? > > (there was no patch in your mail.)
Hmm, I'm not sure about -Os: 3a55fb0d9fe8e2f4594329edd58c5fd6f35a99dd
And 0.01/0.03 IPC improvement doesn't really look too persuasive IMO.
-- Regards/Gruss, Boris.
Sent from a fat crate under my desk. Formatting is fine. --
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