vmdaemon CPU usage and poor performance in 10.0-RELEASE

[Alan Cox]

On Wed, Aug 13, 2014 at 10:42 AM, Polyack, Steve <
Steve.Polyack at intermedix.com> wrote:

>
> > -----Original Message-----
> > From: Kurt Jaeger [mailto:lists at opsec.eu]
> > Sent: Wednesday, August 13, 2014 11:25 AM
> >
> > Hi!
> >
> > > We have a handful of database servers running FreeBSD 10.0-RELEASE
> > > and PostgreSQL 9.3.4.  The servers have 128GB or 256GB of RAM.
> >
> > Are you aware of the recent work on that topic ?
> >
> > https://www.freebsd.org/news/status/report-2014-04-2014-
> > 06.html#PostgreSQL-Performance-Improvements
> >
> > Maybe kib@ knows more about this ?
> >
>
> I've recently read over this and some other posts, but they all seem to
> center around poor postgres performance.  In our case at least, some light
> to medium usage of postgres generally makes the entire system unusable.
>
> The patches & documents linked there also all seem to be for -CURRENT,
> which we aren't running.  We're not too keen on the idea of using CURRENT
> in production, either.  We're planning on testing 10-STABLE, but I was just
> hoping to gain some insight into what the problem may be and whether recent
> commits to vmdaemon code in the -STABLE tree may have a positive effect on
> what we've seen.
>
>

 There is a good chance that your problem is fixed by r265945.