From: Robert Love <rml@tech9.net>
To: Michael Cohen <me@ohdarn.net>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>,
linux-kernel@vger.kernel.org, marcelo@conectiva.com.br
Subject: Re: Submissions for 2.4.19-pre [x86 Syscall Optimizations (Alexander Khripin)]
Date: 25 Feb 2002 22:19:17 -0500 [thread overview]
Message-ID: <1014693559.883.5.camel@phantasy> (raw)
In-Reply-To: <20020225213255.2b403560.me@ohdarn.net>
In-Reply-To: <20020225210721.2ffa8fb1.me@ohdarn.net> <E16fXS2-0007SP-00@the-village.bc.nu> <20020225213255.2b403560.me@ohdarn.net>
On Mon, 2002-02-25 at 21:32, Michael Cohen wrote:
>
> Alan Cox <alan@lxorguk.ukuu.org.uk> wrote:
>
> > Credit for the originator and an explanation would be helpful
>
> See Subject ^^ Alexander Khripin. Looks to me like it improves latency
> quite a bit during syscalls. I'm unable to find the exact mail but I
> believe I was referred to this particular patch by someone on lkml.
Eh? The patch doesn't do anything but move movl ops around. I suspect
the intention may to eliminate datapath stalls, which may be a fine
micro-optimization, but I think we need some numbers first ...
Robert Love
next prev parent reply other threads:[~2002-02-26 3:19 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-26 2:07 Submissions for 2.4.19-pre [x86 Syscall Optimizations (Alexander Khripin)] Michael Cohen
2002-02-26 2:34 ` Alan Cox
2002-02-26 2:32 ` Michael Cohen
2002-02-26 3:19 ` Robert Love [this message]
2002-02-26 3:26 ` Michael Cohen
2002-02-26 9:31 ` Alan Cox
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