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To: Alfred Perlstein <bright@mu.org>
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Subject: Re: cvs commit: src/sys/ufs/ufs ufs_dirhash.c 
In-reply-to: Your message of "Wed, 20 Mar 2002 10:17:11 PST."
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Date: Wed, 20 Mar 2002 19:44:40 +0000
From: David Malone <dwmalone@maths.tcd.ie>
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> >                                mean #probes for
> >                     home dir  mh inbox  news/cancel  tmp    squid2  squid3
> >   old   successful  1.02      3.19      4.07         1.10    7.85   2.06
> >   new   successful  1.04      1.32      1.27         1.04    1.93   1.17
> >   
> >   old unsuccessful  1.08      4.50      5.37         1.17   10.76   2.69
> >   new unsuccessful  1.08      1.73      1.64         1.17    2.89   1.37

> Looks like anywhere from a factor of 2 to a factor of 5 performance
> improvement!

The numbers in the table are just the numbers of hash probes needed
- when combined with the overhead of the actual operations I was
getting about a 0-5% improvement with a simulated MH mailbox.

	David.

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