From: "David S. Miller" <davem@redhat.com>
To: ak@suse.de
Cc: akpm@digeo.com, taka@valinux.co.jp, alan@lxorguk.ukuu.org.uk,
neilb@cse.unsw.edu.au, linux-kernel@vger.kernel.org,
nfs@lists.sourceforge.net
Subject: Re: [NFS] Re: [PATCH] zerocopy NFS for 2.5.36
Date: Thu, 19 Sep 2002 19:01:54 -0700 (PDT) [thread overview]
Message-ID: <20020919.190154.57630807.davem@redhat.com> (raw)
In-Reply-To: <20020920040619.A30304@wotan.suse.de>
From: Andi Kleen <ak@suse.de>
Date: Fri, 20 Sep 2002 04:06:19 +0200
> See "montdq/movnti", the latter of which even works on register
> registers. Ben LaHaise pointed this out to me earlier today.
The issue is that you really want to do prefetching in these loops
(waiting for the hardware prefetch is too slow because it needs several
cache misses to trigger) so for cache hints on reading only prefetch
instructions are interesting.
I'm talking about using this to bypass the cache on the stores.
The prefetches are a seperate issue and I agree with you on that.
next prev parent reply other threads:[~2002-09-20 2:06 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <3D89176B.40FFD09B@digeo.com.suse.lists.linux.kernel>
[not found] ` <20020919.221513.28808421.taka@valinux.co.jp.suse.lists.linux.kernel>
[not found] ` <3D8A36A5.846D806@digeo.com.suse.lists.linux.kernel>
2002-09-20 1:00 ` Andi Kleen
2002-09-20 1:09 ` Andrew Morton
2002-09-20 1:23 ` Andi Kleen
2002-09-20 1:27 ` David S. Miller
2002-09-20 2:06 ` Andi Kleen
2002-09-20 2:01 ` David S. Miller [this message]
2002-09-20 2:28 ` Andi Kleen
2002-09-20 2:20 ` David S. Miller
2002-09-20 2:35 ` Andi Kleen
2002-10-16 14:04 Lever, Charles
-- strict thread matches above, loose matches on Subject: below --
2002-10-14 5:50 Neil Brown
2002-10-14 12:01 ` Hirokazu Takahashi
2002-10-16 3:44 ` Neil Brown
2002-10-16 4:31 ` David S. Miller
2002-10-17 2:03 ` [NFS] " Andrew Theurer
2002-10-17 2:31 ` Hirokazu Takahashi
2002-10-17 13:16 ` Andrew Theurer
2002-10-17 13:26 ` Hirokazu Takahashi
2002-10-17 14:10 ` Andrew Theurer
2002-10-17 16:26 ` Hirokazu Takahashi
2002-10-18 5:38 ` Trond Myklebust
2002-10-18 7:19 ` Hirokazu Takahashi
2002-10-18 15:12 ` Andrew Theurer
2002-10-19 20:34 ` Hirokazu Takahashi
2002-10-22 21:16 ` Andrew Theurer
2002-10-23 9:29 ` Hirokazu Takahashi
2002-10-24 15:32 ` Andrew Theurer
2002-09-19 2:00 Lever, Charles
2002-09-18 23:00 David S. Miller
2002-09-18 23:54 ` Alan Cox
2002-09-19 0:16 ` Andrew Morton
2002-09-19 13:15 ` [NFS] " Hirokazu Takahashi
2002-09-19 20:42 ` Andrew Morton
2002-09-19 21:12 ` David S. Miller
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