Re: Create and drop temp table in 8.3.4 - Mailing list pgsql-performance

On Thu, 2008-11-06 at 13:02 -0600, Kevin Grittner wrote:
> >>> "Kevin Grittner" <Kevin.Grittner@wicourts.gov> wrote:
> > If I find a particular tweak to the background writer or some such
> is
> > particularly beneficial, I'll post again.
>
> It turns out that it was not the PostgreSQL version which was
> primarily responsible for the performance difference.  We updated the
> kernel at the same time we rolled out 8.3.4, and the new kernel
> defaulted to using write barriers, while the old kernel didn't.  Since
> we have a BBU RAID controller, we will add nobarrier to the fstab
> entries.  This makes file creation and unlink each about 20 times
> faster.

Woah... which version of the kernel was old and new?

>
> -Kevin
>
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