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Date:      Mon, 18 Aug 2014 13:42:20 -0500
From:      "Polyack, Steve" <Steve.Polyack@intermedix.com>
To:        "alc@freebsd.org" <alc@freebsd.org>
Cc:        Kurt Jaeger <lists@opsec.eu>, "freebsd-stable@freebsd.org" <freebsd-stable@freebsd.org>
Subject:   RE: vmdaemon CPU usage and poor performance in 10.0-RELEASE
Message-ID:  <4D557EC7CC2A544AA7C1A3B9CBA2B3672609BBA3C4@exchange03.epbs.com>
In-Reply-To: <CAJUyCcNoTJ3xqkC_Prz3N%2BApEqYy3Mi2gA%2BuDo33dczaTMONrA@mail.gmail.com>
References:  <4D557EC7CC2A544AA7C1A3B9CBA2B36726098846B4@exchange03.epbs.com> <20140813152522.GI9400@home.opsec.eu> <4D557EC7CC2A544AA7C1A3B9CBA2B36726098847AF@exchange03.epbs.com> <CAJUyCcNoTJ3xqkC_Prz3N%2BApEqYy3Mi2gA%2BuDo33dczaTMONrA@mail.gmail.com>

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Excuse my poorly formatted reply at the moment, but this seems to have fixe=
d our problems.  I'm going to update the bug report with a note.

Thanks Alan!

Steve Polyack

> -----Original Message-----
> From: owner-freebsd-stable@freebsd.org [mailto:owner-freebsd-
> stable@freebsd.org] On Behalf Of Alan Cox
> Sent: Wednesday, August 13, 2014 12:14 PM
> To: Polyack, Steve
> Cc: Kurt Jaeger; freebsd-stable@freebsd.org
> Subject: Re: vmdaemon CPU usage and poor performance in 10.0-RELEASE
>=20
> On Wed, Aug 13, 2014 at 10:42 AM, Polyack, Steve <
> Steve.Polyack@intermedix.com> wrote:
>=20
> >
> > > -----Original Message-----
> > > From: Kurt Jaeger [mailto:lists@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 li=
ght
> > 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.
> >
> >
>=20
>  There is a good chance that your problem is fixed by r265945.
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