Re: Specific support for Intel Atom architecture

[Ingo Molnar]

* Tobias Doerffel <tobias.doerffel@xxxxxxxxx> wrote:

> Am Sonntag, 3. Mai 2009 08:48:54 schrieb H. Peter Anvin:
> > Willy Tarreau wrote:
> > >> $(call cc-option,-march=atom,-march=i686)
> > >
> > > if it's an in-order architecture, wouldn't it be better to tune for i386
> > > or i486 instead ?
> >
> > Possibly.  It would be worth measuring.
>
> How would one do that (never benchmarked kernel stuff before)?

A standard method is to run lmbench and compare the results - 
lmbench has a built-in 'report comparison between two runs' feature.

	Ingo
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