From owner-freebsd-hackers  Tue May 22 15:56:32 2001
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Date: Wed, 23 May 2001 01:57:36 +0300 (IDT)
From: Nadav Eiron <nadav@cs.Technion.AC.IL>
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To: Kris Kennaway <kris@obsecurity.org>
Cc: hackers@freebsd.org, Jason Andresen <jandrese@mitre.org>
Subject: Re: technical comparison
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I didn't, but I believe Jason's numbers (for ext2 and ufs) also had write
caching only enabled on Linux.

On Tue, 22 May 2001, Kris Kennaway wrote:

> 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. 
> > 
> > Linux (2.2.14-5 + ReiserFS):
> > Time:
> >         164 seconds total
> >         97 seconds of transactions (103 per second)
> > 
> > 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)
> > 
> > Data:
> >         24.83 megabytes read (155.01 kilobytes per second)
> >         336.87 megabytes written (2.05 megabytes per second)
> > 
> > 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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