Date: Tue, 4 Mar 2008 09:40:07 -0800 (PST) From: alan bryan <alan.bryan@yahoo.com> To: freebsd-stable@freebsd.org Subject: 7.0-Release and 3ware 9550SXU w/BBU - horrible write performance Message-ID: <915419.88748.qm@web50505.mail.re2.yahoo.com>
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Hi,
I've got a new server with a 3ware 9550SXU with the
Battery. I am using FreeBSD 7.0-Release (tried both
4BSD and ULE) using AMD64 and the 3ware performance
for writes is just plain horrible. Something is
obviously wrong but I'm not sure what.
I've got a 4 disk RAID 10 array.
According to 3dm2 the cache is on. I even tried
setting The StorSave preference to "Performance" with
no real benefit. There seems to be something really
wrong with disk performance. Here's the results from
bonnie:
File './Bonnie.2551', size: 104857600
Writing with putc()...done
Rewriting...done
Writing intelligently...done
Reading with getc()...done
Reading intelligently...done
Seeker 1...Seeker 2...Seeker 3...start
'em...done...done...done...
-------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
100 9989 4.8 6739 1.0 18900 7.8 225973
98.5 1914662
99.9 177210.7 259.7
Any ideas? Anybody have one of these that's working
with FreeBSD 7?
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