> Rod Taylor writes
> On Wed, 2004-09-22 at 16:53, Simon Riggs wrote:
> > >Neil Conway
> > > On Wed, 2004-09-22 at 09:30, Josh Berkus wrote:
> > > > PARAGRAPH TWO:
> > > > My version:
> > > > In addition to reaching a new milestone in scalability,
> PostgreSQL 8.0
> > > > demonstrates the unparalleled development ability of open source.
> > >
> > > Uh, what exactly is this "new milestone in scalability"?
> >
> > I like that phrase. v8.0 is undoubtedly not just faster but
> more scalable
>
> Just to be a pain, the only benchmarks I've seen (OSDL) indicates 8.0 is
> a touch slower than 7.4.
>
> It is, however, significantly more predictable (consistent) in it's
> performance -- which is far more important for most of us.
>
Interesting. Worrying and interesting. Could I ask you to clarify this in
significantly more detail, so we can all discuss this? I'm willing to listen
to the evidence - there need be no heated debate.
Are you saying that:
- 8.0 is slower than 7.4, for all workloads
- when you give 8.0 more CPUs, it is less or at least similarly scalable as
7.4.5?
Are you really sure a fully comparable test has taken place? Have you taken
into account the effect of tablespaces - or do you consider that to be a
"dressing-up" of something that was already possible?
Best Regards, Simon Riggs