John Hansen wrote:
> > I ran some tests last week and can report results similar on Tom's test:
> >
> > pgbench -i -s 10 bench
> > pgbench -c 10 -t 10000 bench
> >
> > The tests were on a machine with a single SCSI drive that doesn't lie
> > about fsync. I found 7.4.X got around 75tps while 8.0 got 100tps, very
> > similar to the 65/107 numbers Tom had.
>
> You do realize, that pgbench result comparisons are about as useful as a
> fork for eating soup?
>
> On another note, how do you know for sure, that your drive does not lie
> about fsync?
>
> Did you run the tests with fsync turned off vs fsync on?
I just tried and got 115tps with fsync off vs 100 with fsync on, so
fsync is certainly doing something.
-- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610)
359-1001+ If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square,
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