Date: Wed, 28 Nov 2001 23:45:29 +1030 (CST) From: "Daniel O'Connor" <doconnor@gsoft.com.au> To: Harry Putnam <reader@newsguy.com> Cc: freebsd-mobile@FreeBSD.ORG Subject: Re: Extreme filesystem sloth Message-ID: <XFMail.20011128234529.doconnor@gsoft.com.au> In-Reply-To: <m1r8qjnqka.fsf@reader.newsguy.com>
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On 28-Nov-2001 Harry Putnam wrote:
> For comparison later on after I've been able to make the changes here
> is a reprint of the time on Freebsd and now duplicate manuever on the
> same machine but under Linux (Redhat 7.1)
>
> On FreeBSD 4.3
>
> du -sh mail_test
> 94M mail_test
>
> rm -rf mail_test
> real 7m13.484s
> user 0m0.117s
> sys 0m3.080s
I don't happen to have 94meg of mail files handy, but..
[chowder 23:42] /tmp > du -s foo
18904 foo
[chowder 23:42] /tmp > /usr/bin/time rm -rf foo
0.22 real 0.00 user 0.17 sys
I have write caching and softupdates on though. (That directory has 3893
messages in it).
> time rm -rf Mail
> real 0m1.892s
> user 0m0.110s
> sys 0m1.818s
>
> Roughly 600 % faster on linux, and that is on the same box
> (PentiumII 233mhz).
>
> I've got to hit the road now but making the configs will give me
> something todo in the Motels... he he.
Well, let's say it's a linear relationship..
94 / 18.9 = 4.9735
0.22 * 4.9735 = 1.09 seconds.
For data this small the results are probably meaningless anyway.
---
Daniel O'Connor software and network engineer
for Genesis Software - http://www.gsoft.com.au
"The nice thing about standards is that there
are so many of them to choose from."
-- Andrew Tanenbaum
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