Re: How to make a REALLY FAST db server?

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От Tomaz Borstnar
Тема Re: How to make a REALLY FAST db server?
Дата
Msg-id 5.1.0.14.0.20011206000958.02b2c548@mail.over.net
обсуждение исходный текст
Ответ на Re: How to make a REALLY FAST db server?  (Bruce Momjian <pgman@candle.pha.pa.us>)
Ответы Re: How to make a REALLY FAST db server?  (Andrew Snow <andrew@modulus.org>)
Список pgsql-general
At 18:35 27.9.2001, Bruce Momjian wrote the following message:
>Well, SCSI with tagged queueing allows you to send multiple disk
>requests to the drive and the drive orders them to be optimal.  Only the
>drive knows there the head it at a given moment so it seems good to push
>such optimizations into the disk drive.

IBM Deskstar drives DPTA and DLTA and new IC35 all have tagged queuing.
FreeBSD supports that and the results are impressive - lower CPU usage and
faster disks.



----
Tomaz Borstnar <tomaz.borstnar@over.net>
"Love is the answer to the final question you ask" - Unknown



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