On Thu, Mar 18, 2004 at 01:50:32PM -0500, Bruce Momjian wrote:
> > I'm not sure I believe these numbers at all... my experience is that
> > getting trustworthy disk I/O numbers is *not* easy.
>
> These numbers were reproducable on all the platforms I tested.
It's not because they are reproducable
Here are my results on Linux 2.6.1 using cvs version 1.7.
Those times with > 20 seconds, you really hear the disk go crazy.
And I have the feeling something must be wrong. Those results
are reproducible.
Kurt
Simple write timing:
write0.139558
Compare fsync times
On Thu, Mar 18, 2004 at 03:34:21PM -0500, Bruce Momjian wrote:
> Kurt Roeckx wrote:
> > Here are my results on Linux 2.6.1 using cvs version 1.7.
> >
> > Those times with > 20 seconds, you really hear the disk go crazy.
> >
> > And I have the feeling som
On Thu, Mar 18, 2004 at 02:22:10PM -0500, Bruce Momjian wrote:
>
> OK, what better test do you suggest? Right now, there has been no
> testing of these.
I suggest you start by doing atleast preallocating a 16 MB file
and do the tests on that, to atleast be somewhat simular to what
WAL does.
I h
