From owner-freebsd-hackers  Tue May 22 14:47:31 2001
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Date: Tue, 22 May 2001 14:47:28 -0700
From: Kris Kennaway <kris@obsecurity.org>
To: Nadav Eiron <nadav@cs.Technion.AC.IL>
Cc: hackers@freebsd.org, Jason Andresen <jandrese@mitre.org>
Subject: Re: technical comparison
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References: <3B0AB7B6.18FAFBA5@mitre.org> <Pine.GSO.3.95-heb-2.07.1010522222340.14554A-100000@csd>
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In-Reply-To: <Pine.GSO.3.95-heb-2.07.1010522222340.14554A-100000@csd>; from nadav@cs.Technion.AC.IL on Tue, May 22, 2001 at 10:27:27PM +0300
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On Tue, May 22, 2001 at 10:27:27PM +0300, Nadav Eiron wrote:
> I ran tests that I think are similar to what Jason ran on identically
> configured FreeBSD and Linux/ReiserFS machines. ResierFS is much much
> faster than UFS+softupdates on these tests.=20
>=20
> Linux (2.2.14-5 + ReiserFS):
> Time:
>         164 seconds total
>         97 seconds of transactions (103 per second)
>=20
> Files:
>         65052 created (396 per second)
>                 Creation alone: 60000 files (1090 per second)
>                 Mixed with transactions: 5052 files (52 per second)
>         4936 read (50 per second)
>         5063 appended (52 per second)
>         65052 deleted (396 per second)
>                 Deletion alone: 60104 files (5008 per second)
>                 Mixed with transactions: 4948 files (51 per second)
>=20
> Data:
>         24.83 megabytes read (155.01 kilobytes per second)
>         336.87 megabytes written (2.05 megabytes per second)
>=20
> FreeBSD 4.3-RELEASE (ufs/softupdates):

Did you enable write caching?  You didn't mention, and it's off by
default in 4.3, but I think enabled by default on Linux.

Kris

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