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Date:      Tue, 20 Feb 2001 11:06:37 -0800
From:      Brooks Davis <brooks@one-eyed-alien.net>
To:        John Fremlin <chief@bandits.org>
Cc:        Kris Kennaway <kris@obsecurity.org>, freebsd-emulation@FreeBSD.ORG
Subject:   Re: FreeBSD 4.2 RELEASE twice as slow as Linux
Message-ID:  <20010220110637.D31556@Odin.AC.HMC.Edu>
In-Reply-To: <m27l2luy8v.fsf@boreas.yi.org.>; from chief@bandits.org on Tue, Feb 20, 2001 at 04:15:27PM +0000
References:  <"m28zn2kysa.fsf"@boreas.yi.org> <20010219160706.B55565@mollari.cthul.hu> <m27l2luy8v.fsf@boreas.yi.org.>

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On Tue, Feb 20, 2001 at 04:15:27PM +0000, John Fremlin wrote:
> I shall try again with the old .config and ext2fs mounted
> async,noatime.

This is a silly test IMNSHO, but if you really want to it you should
also try compiling it on a UFS file system with softupdates.
Additionaly, unless you are using native FreeBSD binaries instead of
Linux binaries for the compiler, etc, the comparison isn't fair because
there is some cost associated with making many syscalls, especialy
open(2) which may result in extra reads.

-- Brooks

--=20
Any statement of the form "X is the one, true Y" is FALSE.
PGP fingerprint 655D 519C 26A7 82E7 2529  9BF0 5D8E 8BE9 F238 1AD4

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