> > apparently the default value for wal_sync_method is fsync,
> > and apparently the best method is fdatasync.
>
> Best on what platform, and according to what evidence?
>
> We'll be glad to consider changing the default for a specific platform
> if we have a reasonably convincing argument that the other value is
> better. So far, not much study has been done of which method is best
> on which platforms (and under what load conditions).
heh, just a quick note: I had one of FreeBSD's kernel guru's point out
that fsync() on linux is a no-op. I haven't had that src tree in
years so I can't confirm, but I'm inclined to believe him. Just an
FYI. -sc
--
Sean Chittenden