Date: Thu, 24 Feb 2000 13:55:45 -0500 From: Mike Tancsa <mike@sentex.ca> To: questions@freebsd.org Subject: Disk optimizations for news Message-ID: <3.0.5.32.20000224135545.01e97630@marble.sentex.ca>
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I am putting together a new DNEWS server and wanted to get the best
possible disk optimization for it. DNEWS stores its articles in a series
of 1.4MB files on the spool. Given that, what would be the best way to
newfs the drive. A simple bonnie test adjusting the block size on an IDE
drive, shows the following minor differences (i.e. newfs -b 16384 -f 2048
vs the default -b 8192)
-------Sequential Output-------- ---Sequential Input--
--Random--
-Per Char- --Block--- -Rewrite-- -Per Char- --Block---
--Seeks---
Machine MB K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU K/sec %CPU /sec
%CPU
16K 400 18162 92.6 18561 31.0 5695 11.8 12760 97.8 22414 26.8 489.2
5.8
8K 400 17802 94.7 18510 31.7 5676 12.7 12436 97.7 22234 29.6 487.9
5.6
However, I am not sure if this test is representative of how DNEWS would
access the filesystem. Suggestions ?
---Mike
------------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Network Administrator, mike@sentex.net
Sentex Communications www.sentex.net
Cambridge, Ontario Canada
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