| From: | Justin <justin(at)emproshunts(dot)com> |
|---|---|
| To: | Craig James <craig_james(at)emolecules(dot)com> |
| Cc: | Greg Smith <gsmith(at)gregsmith(dot)com>, pgsql-performance(at)postgresql(dot)org |
| Subject: | Re: Benchmark: Dell/Perc 6, 8 disk RAID 10 |
| Date: | 2008-03-17 19:38:19 |
| Message-ID: | 47DEC8AB.8060608@emproshunts.com |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| Lists: | pgsql-performance |
Craig James wrote:
> Justin wrote:
>>> 2000 tps ??? do you have fsync turned off ?
>>>
>>> Dave
>>>
>>
>> No its turned on.
>
> Unless I'm seriously confused, something is wrong with these numbers.
> That's the sort of performance you expect from a good-sized RAID 10
> six-disk array. With a single 7200 rpm SATA disk and XFS, I get 640
> tps. There's no way you could 2000 tps from a single disk.
>
> Craig
>
it is a RAID 10 controller with 6 SAS 10K 73 gig drives. The server
is 3 weeks old now.
it has 16 gigs of RAM
2 quad core Xenon 1.88 Ghz processors
2 gig Ethernet cards.
RAID controller perc 6/i with battery backup 512meg cache, setup not lie
about fsync
WAL is on a RAID 0 drive along with the OS
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