On Wed, Jul 12, 2006 at 10:16:40 -0600,
  "Koth, Christian (DWBI)" <[EMAIL PROTECTED]> wrote:
> 
> I have noticed a strange performance behaviour using a commit statement on 
> two different machines. On one of the machines the commit is many times 
> faster than on the other machine which has faster hardware. Server and client 
> are running always on the same machine.
> 
> Server version (same on both machines): PostgreSQL 8.1.3. (same binaries as 
> well)
> 
> PC1:
> ----
> IDE-HDD (approx. 50 MB/s rw), fs: ext3
> 
> PC2:
> ----
> SCSI-HDD (approx. 65 MB/s rw), fs: ext3
> 
> Both installations of the database have the same configuration, different 
> from default are only the following settings on both machines:
> 
> pgbench gives me the following results:
> PC1:
> ----
> tps = 293.625393 (excluding connections establishing)
> 
> PC2:
> ----
> tps = 46.519634 (excluding connections establishing)

Have you checked to see if the ide drive is lying about having written the
data to the platters?

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