> > Bruce Momjian <pgman@candle.pha.pa.us> writes:
> > > The only problem is that we would no longer have control over which
> > > pages made it to disk. The OS would perhaps write pages as we modified
> > > them. Not sure how important that is.
> >
> > Unfortunately, this alone is a *fatal* objection. See nearby
> > discussions about WAL behavior: we must be able to control the relative
> > timing of WAL write/flush and data page writes.
>
> Bummer.
>
BTW, what means "bummer" ?
But for many OSes you CAN control when to write data - you can mlock
individual pages.