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From: "David S. Miller" <davem@redhat.com>
To: pavel@suse.cz
Cc: ak@suse.de, linux-kernel@vger.kernel.org,
	hubicka@atrey.karlin.mff.cuni.cz
Subject: Re: [PATCH] Start of compat32.h (again)
Date: Thu, 05 Dec 2002 13:06:14 -0800 (PST)	[thread overview]
Message-ID: <20021205.130614.99253893.davem@redhat.com> (raw)
In-Reply-To: <20021204111947.GB309@elf.ucw.cz>

   From: Pavel Machek <pavel@suse.cz>
   Date: Wed, 4 Dec 2002 12:19:47 +0100

   Actually, it tends to nullify the bloat cost and then make it few
   percent faster... For most of spec2000 modulo two or three cache-bound
   tests that are 50% slower :-(.

How about some test where relocations come into play?
spec2000 is a bad example, it's just crunch code.

Most systems spend their time running quick small executables over and
over, and in such cases relocation overhead shows up very strongly.
This is why I asked for fork, exec et al. latency figures for 32-bit
vs 64-bit on x86_64 but I've been informed in private email that
nobody can send me numbers due to NDAs.

I still think making the simple programs like ls, cat, bash et
al. 64-bit in a dist is a bad idea.

  reply	other threads:[~2002-12-05 21:04 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <Pine.LNX.4.44.0212011047440.12964-100000@home.transmeta.com.suse.lists.linux.kernel>
     [not found] ` <1038804400.4411.4.camel@rth.ninka.net.suse.lists.linux.kernel>
2002-12-02  8:13   ` [PATCH] Start of compat32.h (again) Andi Kleen
2002-12-02  8:28     ` David S. Miller
2002-12-02  9:07       ` Andi Kleen
2002-12-02  9:36         ` Jakub Jelinek
2002-12-02 17:01           ` Mikael Pettersson
2002-12-02 10:16         ` David S. Miller
2002-12-04 11:19           ` Pavel Machek
2002-12-05 21:06             ` David S. Miller [this message]
2002-12-05 21:21               ` Pavel Machek
2002-12-05 21:22                 ` David S. Miller
2002-12-05 21:32                   ` Pavel Machek
2002-11-27  7:42 Stephen Rothwell
2002-11-27  7:58 ` David S. Miller
2002-11-27 13:00   ` Stephen Rothwell
2002-11-28  5:27     ` David S. Miller
2002-11-27 18:51   ` Linus Torvalds
2002-11-28  5:34     ` David S. Miller
2002-11-27  8:00 ` David Mosberger
2002-11-27  8:06   ` David S. Miller
2002-11-27  8:29   ` Andi Kleen
2002-11-27  8:46     ` David Mosberger
2002-11-27  9:01       ` Andi Kleen
2002-11-27  9:57       ` David S. Miller
2002-11-27 17:10         ` David Mosberger
2002-11-28  5:29           ` David S. Miller
2002-11-27 12:49     ` Alan Cox
2002-11-30 20:34     ` Ralf Baechle
2002-11-27 17:18 ` Linus Torvalds
2002-11-28  5:22   ` Stephen Rothwell
2002-11-28  5:26     ` David S. Miller
2002-11-29  2:36       ` Stephen Rothwell
2002-12-01 18:54       ` Linus Torvalds
2002-12-02  4:46         ` David S. Miller
2002-12-02  4:57           ` Stephen Rothwell
2002-12-02  6:17             ` David S. Miller
2002-12-02  7:39           ` Richard Henderson
2002-12-02  7:44             ` David S. Miller
2002-12-02  7:59             ` Ralf Baechle
2002-12-02  8:01               ` David S. Miller
2002-12-04 11:22                 ` Pavel Machek
2002-12-05 21:04                   ` David S. Miller
2002-11-28  5:31   ` David S. Miller

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