Date: Tue, 04 Mar 2008 14:24:34 -0500 From: Mike Tancsa <mike@sentex.net> To: alan bryan <alan.bryan@yahoo.com>, freebsd-performance@freebsd.org Subject: Re: 7.0-Release and 3ware 9550SXU w/BBU - horrible write performance Message-ID: <200803041924.m24JOOt0096588@lava.sentex.ca> In-Reply-To: <497790.39526.qm@web50507.mail.re2.yahoo.com> References: <497790.39526.qm@web50507.mail.re2.yahoo.com>
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At 12:50 PM 3/4/2008, alan bryan wrote:
>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.
Not sure about 7.0, but I have this card on a 6.3 box. Doing
something simple like
% cat /dev/zero > big
% iostat -c 100
tty da0 pass0 cpu
tin tout KB/t tps MB/s KB/t tps MB/s us ni sy in id
0 0 53.92 6 0.31 0.00 0 0.00 3 0 0 0 96
3 197 4.00 1 0.00 0.00 0 0.00 0 0 0 0 100
1 64 127.94 1100 137.42 0.00 0 0.00 0 0 49 5 46
0 63 128.00 1012 126.50 0.00 0 0.00 2 0 34 5 59
0 63 128.00 969 121.13 0.00 0 0.00 1 0 30 2 66
0 62 127.85 758 94.67 0.00 0 0.00 1 0 26 4 69
0 61 127.82 1252 156.25 0.00 0 0.00 1 0 50 8 42
0 63 127.59 542 67.59 0.00 0 0.00 1 0 26 1 72
0 61 127.66 1026 127.90 0.00 0 0.00 0 0 47 5 49
1 87 127.56 513 63.97 0.00 0 0.00 0 0 19 4 77
0 61 0.00 0 0.00 0.00 0 0.00 0 0 0 0 100
Shows pretty OK write performance.
% dd if=/dev/zero of=/var/tmp/big bs=1024k count=1000
1000+0 records in
1000+0 records out
1048576000 bytes transferred in 8.646134 secs (121276863 bytes/sec)
This is on RAID10 on 4 Segate ST380811AS drives.
3ware device driver for 9000 series storage controllers, version: 3.60.04.003
twa0: <3ware 9000 series Storage Controller> port 0xac00-0xac3f mem
0xf4000000-0xf5ffffff,0xff2ff000-0xff2fffff irq 16 at device 3.0 on pci2
twa0: [GIANT-LOCKED]
twa0: INFO: (0x15: 0x1300): Controller details:: Model 9550SX-4LP, 4
ports, Firmware FE9X 3.01.01.028, BIOS BE9X 3.01.00.024
da0: <AMCC 9550SX-4LP DISK 3.01> Fixed Direct Access SCSI-3 device
da0: 100.000MB/s transfers
da0: 152566MB (312455168 512 byte sectors: 255H 63S/T 19449C)
I have write cache enabled and performance set for the StorSav. Its
in a PCI-x slot as well.
---Mike
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