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* Postgresql Performance via the LSI MegaRAID 2x Card
@ 2005-05-14 00:16 Steve Poe <spoe@sfnet.cc>
2005-05-14 00:28 ` Re: Postgresql Performance via the LSI MegaRAID 2x Card Josh Berkus <josh@agliodbs.com>
0 siblings, 1 reply; 4+ messages in thread
From: Steve Poe @ 2005-05-14 00:16 UTC (permalink / raw)
To: pgsql-performance
Past recommendations for a good RAID card (for SCSI) have been the LSI
MegaRAID 2x. This unit comes with 128MB of RAM on-board. Has anyone
found by increasing the on-board RAM, did Postgresql performed better?
Thanks.
Steve Poe
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: Postgresql Performance via the LSI MegaRAID 2x Card
2005-05-14 00:16 Postgresql Performance via the LSI MegaRAID 2x Card Steve Poe <spoe@sfnet.cc>
@ 2005-05-14 00:28 ` Josh Berkus <josh@agliodbs.com>
2005-05-15 21:15 ` Re: Postgresql Performance via the LSI MegaRAID 2x Card William Yu <wyu@talisys.com>
0 siblings, 1 reply; 4+ messages in thread
From: Josh Berkus @ 2005-05-14 00:28 UTC (permalink / raw)
To: Steve Poe <spoe@sfnet.cc>; +Cc: pgsql-performance
Steve,
> Past recommendations for a good RAID card (for SCSI) have been the LSI
> MegaRAID 2x. This unit comes with 128MB of RAM on-board. Has anyone
> found by increasing the on-board RAM, did Postgresql performed better?
My informal tests showed no difference between 64MB and 256MB.
--
--Josh
Josh Berkus
Aglio Database Solutions
San Francisco
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: Postgresql Performance via the LSI MegaRAID 2x Card
2005-05-14 00:16 Postgresql Performance via the LSI MegaRAID 2x Card Steve Poe <spoe@sfnet.cc>
2005-05-14 00:28 ` Re: Postgresql Performance via the LSI MegaRAID 2x Card Josh Berkus <josh@agliodbs.com>
@ 2005-05-15 21:15 ` William Yu <wyu@talisys.com>
2005-05-16 03:27 ` Re: Postgresql Performance via the LSI MegaRAID 2x Card Josh Berkus <josh@agliodbs.com>
0 siblings, 1 reply; 4+ messages in thread
From: William Yu @ 2005-05-15 21:15 UTC (permalink / raw)
To: pgsql-performance
I'm sure there's some corner case where more memory helps. If you
consider that 1GB of RAM is about $100, I'd max out memory on the
controller just for the hell of it.
Josh Berkus wrote:
> Steve,
>
>
>>Past recommendations for a good RAID card (for SCSI) have been the LSI
>>MegaRAID 2x. This unit comes with 128MB of RAM on-board. Has anyone
>>found by increasing the on-board RAM, did Postgresql performed better?
>
>
> My informal tests showed no difference between 64MB and 256MB.
>
^ permalink raw reply [nested|flat] 4+ messages in thread
* Re: Postgresql Performance via the LSI MegaRAID 2x Card
2005-05-14 00:16 Postgresql Performance via the LSI MegaRAID 2x Card Steve Poe <spoe@sfnet.cc>
2005-05-14 00:28 ` Re: Postgresql Performance via the LSI MegaRAID 2x Card Josh Berkus <josh@agliodbs.com>
2005-05-15 21:15 ` Re: Postgresql Performance via the LSI MegaRAID 2x Card William Yu <wyu@talisys.com>
@ 2005-05-16 03:27 ` Josh Berkus <josh@agliodbs.com>
0 siblings, 0 replies; 4+ messages in thread
From: Josh Berkus @ 2005-05-16 03:27 UTC (permalink / raw)
To: William Yu <wyu@talisys.com>; +Cc: pgsql-performance
William,
> I'm sure there's some corner case where more memory helps.
QUite possibly. These were not scientific tests.
--
Josh Berkus
Aglio Database Solutions
San Francisco
^ permalink raw reply [nested|flat] 4+ messages in thread
end of thread, other threads:[~2005-05-16 03:27 UTC | newest]
Thread overview: 4+ messages (download: mbox mbox.gz follow: Atom feed)
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2005-05-14 00:16 Postgresql Performance via the LSI MegaRAID 2x Card Steve Poe <spoe@sfnet.cc>
2005-05-14 00:28 ` Josh Berkus <josh@agliodbs.com>
2005-05-15 21:15 ` William Yu <wyu@talisys.com>
2005-05-16 03:27 ` Josh Berkus <josh@agliodbs.com>
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