Re: [GENERAL] Upgrade to dual processor machine?

On 14 Nov 2002, Doug McNaught wrote:

> "Henrik Steffen" <steffen@city-map.de> writes:
>
> > hi steve,
> >
> > why fsync? - what's fsync? never heard of it... google tells
> > me something about syncing of remote hosts ... so why should I
> > activate it ?? ... I conclude, it's probably disabled because
> > I don't know what it is ....
>
> fsync() is a system call that flushes a file's contents from the
> buffer cache to disk.  PG uses it to ensure consistency in the WAL
> files.  It is enabled by default.  Do NOT disable it unless you know
> exactly what you are doing and are prepared to sacrifice some data
> integrity for performance.

I thought the danger with WAL was minimized to the point of not being an
issue anymore.  Tom?