> that works well enough to make it uncommon for backends to have to
> write dirty buffers for themselves. If we can, then doing all the
> writes O_SYNC would not be a problem.
One problem with O_SYNC would be, that the OS does not group writes any
more. So the code would need to eighter do it's own sorting and grouping
(256k) or use aio, or you won't be able to get the maximum out of the disks.
Andreas