From: Richard Henderson <rth@twiddle.net>
To: David Mosberger <davidm@hpl.hp.com>
Cc: "David S. Miller" <davem@redhat.com>,
anton@samba.org, linux-kernel@vger.kernel.org,
zippel@linux-m68k.org
Subject: Re: thread_info implementation
Date: Mon, 11 Feb 2002 21:26:44 -0800 [thread overview]
Message-ID: <20020211212644.A20387@twiddle.net> (raw)
In-Reply-To: <15464.34183.282646.869983@napali.hpl.hp.com> <20020211.190449.55725714.davem@redhat.com> <15464.35214.669412.477377@napali.hpl.hp.com> <20020211.192334.123921982.davem@redhat.com> <15464.36074.246502.582895@napali.hpl.hp.com>
In-Reply-To: <15464.36074.246502.582895@napali.hpl.hp.com>; from davidm@hpl.hp.com on Mon, Feb 11, 2002 at 07:32:58PM -0800
On Mon, Feb 11, 2002 at 07:32:58PM -0800, David Mosberger wrote:
> The kernel has many paths that have sequential dependencies. If there
> is no other work to do, the compiler won't help you.
Indeed. A 2 cycle latency on a 4-issue processor means you have
to have quite a large block of code in order for the hot load to
be "free".
On another topic, I'm considering having $8 continue to be current
and using the two-insn stack mask to get current_thread_info and
measuring the size difference that makes.
r~
next prev parent reply other threads:[~2002-02-12 5:27 UTC|newest]
Thread overview: 56+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-11 21:08 thread_info implementation Roman Zippel
2002-02-11 20:50 ` Anton Blanchard
2002-02-12 0:46 ` David S. Miller
2002-02-12 0:57 ` Roman Zippel
2002-02-12 0:57 ` David S. Miller
2002-02-12 1:10 ` Roman Zippel
2002-02-12 13:01 ` Bjorn Wesen
2002-02-12 13:49 ` David S. Miller
2002-02-12 1:01 ` David Mosberger
2002-02-12 1:07 ` David S. Miller
2002-02-12 1:21 ` David Mosberger
2002-02-12 1:32 ` David S. Miller
2002-02-12 1:36 ` David Mosberger
2002-02-12 1:41 ` David S. Miller
2002-02-12 1:53 ` David Mosberger
2002-02-12 2:22 ` David S. Miller
2002-02-12 2:30 ` David Mosberger
2002-02-12 2:36 ` David S. Miller
2002-02-12 2:46 ` David Mosberger
2002-02-12 2:51 ` David S. Miller
2002-02-12 3:01 ` David Mosberger
2002-02-12 3:04 ` David S. Miller
2002-02-12 3:18 ` David Mosberger
2002-02-12 3:23 ` David S. Miller
2002-02-12 3:32 ` David Mosberger
2002-02-12 3:42 ` David S. Miller
2002-02-12 4:16 ` David Mosberger
2002-02-12 4:21 ` David S. Miller
2002-02-12 4:33 ` David Mosberger
2002-02-12 5:26 ` Richard Henderson [this message]
2002-02-12 5:32 ` David S. Miller
2002-02-12 5:50 ` David Mosberger
2002-02-12 5:57 ` Richard Henderson
2002-02-13 11:18 ` Anton Blanchard
2002-02-12 17:14 ` Pavel Machek
2002-02-13 0:46 ` David S. Miller
2002-02-13 1:30 ` Roman Zippel
2002-02-12 9:12 ` Roman Zippel
2002-02-12 9:30 ` Jeff Garzik
2002-02-12 10:14 ` Roman Zippel
2002-02-12 13:21 ` David Howells
2002-02-12 19:15 ` David Mosberger
2002-02-12 19:38 ` David Howells
2002-02-12 2:49 ` Davide Libenzi
2002-02-12 0:01 ` Roman Zippel
2002-02-12 0:10 ` David Howells
2002-02-12 0:22 ` Roman Zippel
-- strict thread matches above, loose matches on Subject: below --
2002-02-11 17:39 Arkadiy Chapkis - Arc
2002-02-11 20:19 ` Robert Love
2002-02-11 20:42 ` Luigi Genoni
2002-02-11 20:48 ` Robert Love
2002-02-11 23:37 ` Jeff Garzik
2002-02-11 23:49 ` Richard Henderson
2002-02-12 0:09 ` Dave Jones
2002-02-12 0:20 ` Jeff Garzik
2002-02-12 0:24 ` Dave Jones
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