Performance testing question:
Hi all,
I have been doing some performance testing on my file server, the specs of
the machine are:
Compaq Proliant 6500
Quad Pentium Pro 200/1MB cache
2GB Ram
2 x 2/DH Hardware RAID controllers
1 x Emulex LP8000 Fibre Channel controller
Dual 10/100 NIC (Intel)
Fibre 1000 NIC (Intel)
(All PCI slots are 32-bit/33 Mhz.)
This is connected, via a Storageworks San Switch 8 (basically a Brocade
Silkworm 2400) to two :
Storageworks 4000 fibre channel enclosure, each with 12 x 36GB U160,
10,000rpm drives arranged as 2 logical RAID 5 drives.
The box is running Debian Sarge, fully patched upto date.
I realise the hardware is not exactly top of the range, but I thought I'd
see what it would do.
OK, so I have run a few tests, but settled on dbench as it's *really* easy
to use :-)
I am seeing about 54MB/sec when run on the fibre connected drive(s), and
about 90MB/sec when using the 2/DH controllers...this seems a little odd, as
the 2/DH are only supposed to be 40 MB/sec interfaces, whereas the LP8000 is
a 1Gb/sec card - I would expect to be seeing closer to 100MB/sec from the
fibre devices ....
From local, 2/DH filesystems:
bungo:/tmp# dbench 2
2 clients started
0 62477 90.67 MB/sec
Throughput 90.6613 MB/sec 2 procs
From FC connected:
bungo:/export/iso# dbench 2
2 clients started
0 62477 44.23 MB/sec
Throughput 44.2259 MB/sec 2 procs
Is there anything else I can try, or do these figures seem reasonable to
everyone?
Cheers,
Pete.
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