Re: [PATCH] i386-pda UP optimization

[Ingo Molnar]

* Jeremy Fitzhardinge <jeremy@xxxxxxxx> wrote:

> [...] However, when I measured segment register use timings, I didn't 
> see any dramatic costs associated with segment register use which 
> would account for a 5% hit in your benchmark.

if by that measurement you mean time-segops.c, i dont think it correctly 
measures 'mixed' use of different selector values for the same %gs 
segment selector. And that's what i suggested for you to measure in 
September, and that's what Eric's testcase triggers too.

	Ingo
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