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

Jamie Lokier (jamie@shareable.org)
Wed, 12 Feb 2003 10:18:31 +0000

Linus Torvalds wrote:
> In article <20030212041848.GA9273@bjl1.jlokier.co.uk>,
> Jamie Lokier <jamie@shareable.org> 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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