Re: Benchmark: Dell/Perc 6, 8 disk RAID 10 - Mailing list pgsql-performance

From Justin
Subject Re: Benchmark: Dell/Perc 6, 8 disk RAID 10
Date
Msg-id 47DEC8AB.8060608@emproshunts.com
Whole thread Raw
In response to Re: Benchmark: Dell/Perc 6, 8 disk RAID 10  (Craig James <craig_james@emolecules.com>)
Responses Re: Benchmark: Dell/Perc 6, 8 disk RAID 10  (Enrico Sirola <enrico.sirola@gmail.com>)
Re: Benchmark: Dell/Perc 6, 8 disk RAID 10  (James Mansion <james@mansionfamily.plus.com>)
List 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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