Dave Cramer wrote:

On 18-Nov-05, at 1:07 AM, Luke Lonergan wrote:

Postgres + Any x86 CPU from 2.4GHz up to Opteron 280 is CPU bound  after
110MB/s of I/O.  This is true of Postgres 7.4, 8.0 and 8.1.

A $1,000 system with one CPU and two SATA disks in a software RAID0  will
perform exactly the same as a $80,000 system with 8 dual core CPUs and the
world's best SCSI RAID hardware on a large database for decision  support
(what the poster asked about).

Now there's an interesting line drawn in the sand. I presume you have numbers to back this up ?

This should draw some interesting posts.

Well, I'm prepared to swap Luke *TWO* $1000 systems for one $80,000 system if he's got one going :-)

  Richard Huxton
  Archonet Ltd

---------------------------(end of broadcast)---------------------------
TIP 9: In versions below 8.0, the planner will ignore your desire to
      choose an index scan if your joining column's datatypes do not

Reply via email to