Subject: OpenBSD's new ffs_dirpref() code
To: None <tech-kern@netbsd.org>
From: Jared D. McNeill <jmcneill@invisible.yi.org>
List: tech-kern
Date: 04/10/2001 20:51:00
Has anybody looked at this yet? I brought it into 1.5U (on an AMD K6-3
450, 128MB of RAM) and am noticing huge speed improvements (shown below).
Does anybody have any plans on bringing this in? I can make up a patch if
anybody's interested.

Jared

Command: time tar -xf pkgsrc.tar

new dirpref	1.4u 15.9s 7:26.72 3.8% 0+0k 9081+37152io 18pf+0w
original	1.0u 15.2s 23:35.00 1.1% 0.0k 15972+78694io 18pf+0w

Command: time rm -rf pkgsrc

new dirpref	0.4u 2.5s 9:34.80 0.5% 0+0k 14702+31092io 10pf+0w
original	0.3u 3.1s 25:27.44 0.2% 0+0k 19399+38105io 10pf+0w