"Jim C. Nasby" <jim@nasby.net> writes:
> I believe there's something similar for OS X as well. The question is:
> would it be better to do that, or to just delay calling fsync until the
> OS has had a chance to write things out.
A delay is not going to help unless you can suppress additional writes
to the file, which I don't think you can unless there's very little
going on in the database --- dirty buffers have to get written to make
room for other pages, checkpoint in progress or no.
regards, tom lane