On Thu, Sep 21, 2006 at 11:05:39PM -0400, Bruce Momjian wrote:
> We tried posix_fadvise() during the 8.2 development cycle, but had
> problems as outlined in a comment in xlog.c:
>
> /*
> * posix_fadvise is problematic on many platforms: on older x86 Linux
> * it just dumps core, and there are reports of problems on PPC platforms
> * as well. The following is therefore disabled for the time being.
> * We could consider some kind of configure test to see if it's safe to
> * use, but since we lack hard evidence that there's any useful performance
> * gain to be had, spending time on that seems unprofitable for now.
> */
In case it's not clear, that's a call for someone to do some performance
testing. :)
Bruce, you happen to have a URL for a patch to put fadvise in?
--
Jim Nasby jim@nasby.net
EnterpriseDB http://enterprisedb.com 512.569.9461 (cell)