[prev in list] [next in list] [prev in thread] [next in thread] 

List:       linux-kernel
Subject:    Re: [Bug 350] New: i386 context switch very slow compared to 2.4 due to wrmsr (performance)
From:       Jamie Lokier <jamie () shareable ! org>
Date:       2003-02-12 10:18:31
[Download RAW message or body]

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
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/
[prev in list] [next in list] [prev in thread] [next in thread]