On Thu, Aug 30, 2012 at 10:34 AM, Markus Innerebner
<markus.innerebner@inf.unibz.it> wrote:
>
> > To flush the filesystem cache (from Linux 2.6.16 on), use
> > sync; echo 3 > /proc/sys/vm/drop_caches
>
>
> I started to do that , and
> yes, this solves my problem!!
>
> I assume that deleting file system cache implies that also postgres cache is
> deleted, isn't it ?
No, the postgres-managed cache is not cleared by doing that. In order
to get rid of both layers of caching, you should restart the postgres
server and then do the drop_caches.
Cheers,
Jeff