From: Lee Revell <rlrevell@joe-job.com>
To: Ryan Cumming <ryan@spitfire.gotdns.org>
Cc: "David S. Miller" <davem@redhat.com>, Ingo Molnar <mingo@elte.hu>,
torvalds@osdl.org, Andrew Morton <akpm@osdl.org>,
linux-kernel <linux-kernel@vger.kernel.org>
Subject: Re: [patch] context-switching overhead in X, ioport(), 2.6.8.1
Date: Sun, 22 Aug 2004 02:00:02 -0400 [thread overview]
Message-ID: <1093154401.817.43.camel@krustophenia.net> (raw)
In-Reply-To: <200408212242.33562.ryan@spitfire.gotdns.org>
On Sun, 2004-08-22 at 01:42, Ryan Cumming wrote:
> On Saturday 21 August 2004 21:46, David S. Miller wrote:
> > FWIW, I would recommend a sparse bitmap implementation for the
> > ioport stuff.
>
> The problem is that the sparse bitmap would have to be unpacked to the "dense"
> bitmap that lives in the TSS on context switch.
Can someone supply a link to the original LKML post with the ioport
change? I was not able to find it in my mailbox nor in the archives.
Lee
next prev parent reply other threads:[~2004-08-22 6:00 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-21 13:55 [patch] context-switching overhead in X, ioport(), 2.6.8.1 Ingo Molnar
2004-08-22 4:46 ` David S. Miller
2004-08-22 5:42 ` Ryan Cumming
2004-08-22 6:00 ` Lee Revell [this message]
2004-08-22 6:06 ` Ryan Cumming
[not found] <2vEzI-Vw-17@gated-at.bofh.it>
2004-08-22 12:16 ` Andi Kleen
2004-08-22 12:00 ` Alan Cox
2004-08-22 14:23 ` Andi Kleen
2004-08-22 14:47 ` Alan Cox
2004-08-22 17:31 ` Ingo Molnar
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