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Date: Sun, 30 Sep 2001 21:02:02 +0100
From: Tom Hukins <tom@FreeBSD.org>
To: Pete French <pfrench@firstcallgroup.co.uk>
Cc: stable@FreeBSD.ORG
Subject: Re: dirpref gives massive performance boost
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In-Reply-To: <E15nme0-000FI0-00@mailhost.firstcallgroup.co.uk>; from pfrench@firstcallgroup.co.uk on Sun, Sep 30, 2001 at 08:52:56PM +0100
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On Sun, Sep 30, 2001 at 08:52:56PM +0100, Pete French wrote:
> Out of interest when did dirpref go in ? i.e. what was the first
> CVSUP date that would have caught it ? (I am unsure as to how to set
> about fiidning this out, even with the CVS docuumentation - so any
> pointers to ways of showing me how to answer my own question would
> be much arpeciated too!)

The dirpref code went into -STABLE on 21st September.

Here's how you can find this out:

% cd /usr/src/sys
% grep -R dirpref *

The file ufs/ffs/ffs_alloc.h contains references to dirpref, so you
can query the CVS repository for this file to find out when dirpref
went into -STABLE.  The easiest way to do this is probably to use the
Web interface:

http://www.FreeBSD.org/cgi/cvsweb.cgi/src/sys/ufs/ffs/ffs_alloc.c

Tom

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