Date: Tue, 31 Oct 2000 00:16:58 -0500 From: Mike Tancsa <mike@sentex.net> To: stable@freebsd.org Subject: twe (3ware RAID) performance Message-ID: <4.2.2.20001030231920.03a693c8@mail.sentex.net>
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Just playing with a new batch of 3ware IDE RAID cards and was wondering how
they performed to plain old IDE. These tests were done an SMP dual PIII
800, 512MB of RAM with STABLE as of this afternoon, with RAID1 configured.
twe0: <3ware Storage Controller> port 0xa800-0xa80f irq 5 at device 11.0 on
pci0
twe0: 2 ports, Firmware FE6X 1.00.00.043, BIOS BEXX 1.03.01.027
twed0: <TwinStor, Normal> on twe0
twed0: 28628MB (58631296 sectors)
softupdates are on all partitions.
-------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
twe 600 25640 70.9 25854 30.7 12118 14.0 23493 91.5 25866 15.4
1204.3 7.3
1200 25341 70.5 24866 29.5 12254 14.0 24505 95.2 26175
15.6 240.6 2.0
ad2 600 21151 60.7 20842 23.8 9929 14.1 23364 93.2 24940
17.0 561.4 2.8
1200 21055 60.7 20804 23.4 9997 14.0 23295 93.0 25295 17.2
169.7 1.2
ad2 is the same drive, a QUANTUM FIREBALLP LM30 30.2GIG, running on a UDMA
33 controller (single master, no slave, Intel PIIX4 ATA33 controller). Not
bad performance to say the least! For a $130USD the price is certainly
right for the two port version.
I should have some comparative rawio numbers a little later as well.
Random read Sequential read Random write Sequential write
ID K/sec /sec K/sec /sec K/sec /sec K/sec /sec
twed0e 2651.4 162 59318.3 3620 1193.8 74 8401.4 513
---Mike
--------------------------------------------------------------------
Mike Tancsa, tel +1 519 651 3400
Network Administration, mike@sentex.net
Sentex Communications www.sentex.net
Cambridge, Ontario Canada www.sentex.net/mike
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