Re: no universally correct setting for fsync

Bernd Helmle <mailings@oopsware.de> writes:
> I've recently even started to wonder if the performance gain with fsync=off 
> is still that large on modern hardware. While testing large migration 
> procedures to a new version some time ago (on an admitedly fast storage) i 
> forgot here and then to turn it off, without a significant degradation in 
> performance.

That says to me either that you're using a battery-backed write cache,
or your fsyncs don't really work (no write barriers or something like
that).
        regards, tom lane