Re: [Bug 350] New: i386 context switch very slow compared to 2.4 due to wrmsr (performance)

From: Jamie Lokier (
Date: Wed Feb 12 2003 - 05:18:31 EST

Linus Torvalds wrote:
> In article <>,
> Jamie Lokier <> wrote:
> >
> >A cute and wonderful hack is to use the 6 words in the TSS prior to
> >&tss->es as the trampoline. Now that __switch_to is done in software,
> >those words are not used for anything else.
> No!!
> That's not cute and wonderful, that's _horrible_.

I meant: the trampoline _stack_ lives in the TSS.

There is no trampoline _code_.

My apologies for poor wording.

-- Jamie
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