Subject: Re: about untar performance on -current
To: Jared D. McNeill <jmcneill@invisible.yi.org>
From: Frank van der Linden <fvdl@wasabisystems.com>
List: tech-kern
Date: 04/12/2001 16:25:00
On Thu, Apr 12, 2001 at 08:36:08AM -0300, Jared D. McNeill wrote:

pkgsrc.tar (gunzipped, to eliminate the unzip CPU overhead):

1.5:
tar:	5.338u 59.141s 25:12.62 4.2%    0+0k 40696+125786io 41pf+0w
rm:	2.192u 14.033s 10:35.23 2.5%    0+0k 16853+21114io 19pf+0w

1.5U:   
tar:    5.881u 73.615s 17:53.51 7.4%    0+0k 10990+52377io 18pf+0w
rm:     2.414u 18.443s 17:39.00 1.9%    0+0k 16331+33278io 8pf+0w

1.5U+enami+dirpref:
tar:    5.630u 76.570s 12:05.47 11.3%   0+0k 9511+38130io 18pf+0w
rm:     3.201u 17.545s 13:09.06 2.6%    0+0k 15243+29903io 8pf+0w

Not sure why the untar on 1.5 is so much slower. Presumably
the fixed cache size is having an influence there.

- Frank


-- 
Frank van der Linden                           fvdl@wasabisystems.com
======================================================================
Quality NetBSD CDs, Support & Service.   http://www.wasabisystems.com/