From owner-freebsd-stable@FreeBSD.ORG Wed Aug 13 15:56:58 2014 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id CB9418AB for ; Wed, 13 Aug 2014 15:56:58 +0000 (UTC) Received: from mail.intermedix.com (mail2.epbs.com [66.210.191.12]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "Barracuda/emailAddress=sales@barracuda.com", Issuer "Barracuda/emailAddress=sales@barracuda.com" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 9DEFD292D for ; Wed, 13 Aug 2014 15:56:57 +0000 (UTC) X-ASG-Debug-ID: 1407944559-0526b442d700dc0001-BIHDGU Received: from mailgate00.corp.okcyok1.priv.intermedix.com (mailgate00.epbs.com [10.130.4.34]) by mail.intermedix.com with ESMTP id LgeC7niPYTR1HuNn; Wed, 13 Aug 2014 08:42:39 -0700 (PDT) X-Barracuda-Envelope-From: Steve.Polyack@intermedix.com X-ASG-Whitelist: Client X-WSS-ID: 0NA94Z1-01-F8D-02 X-M-MSG: Received: from exchange01.epbs.com (exchange01.okcyok0.priv.intermedix.com [192.168.25.157]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by mailgate00.corp.okcyok1.priv.intermedix.com (Postfix) with ESMTPS id 20A47B905A9; Wed, 13 Aug 2014 10:42:36 -0500 (CDT) Received: from EXCHANGE03.epbs.com ([0000:0000:0000:0000:0000:0000:0.0.0.1]) by exchange01.epbs.com ([192.168.25.157]) with mapi; Wed, 13 Aug 2014 10:42:39 -0500 From: "Polyack, Steve" To: Kurt Jaeger Date: Wed, 13 Aug 2014 10:42:37 -0500 Subject: RE: vmdaemon CPU usage and poor performance in 10.0-RELEASE Thread-Topic: vmdaemon CPU usage and poor performance in 10.0-RELEASE X-ASG-Orig-Subj: RE: vmdaemon CPU usage and poor performance in 10.0-RELEASE Thread-Index: Ac+3Cs4zgKXCNkvXSg+gHG1lNWX+TwAAMPXg Message-ID: <4D557EC7CC2A544AA7C1A3B9CBA2B36726098847AF@exchange03.epbs.com> References: <4D557EC7CC2A544AA7C1A3B9CBA2B36726098846B4@exchange03.epbs.com> <20140813152522.GI9400@home.opsec.eu> In-Reply-To: <20140813152522.GI9400@home.opsec.eu> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Barracuda-Connect: mailgate00.epbs.com[10.130.4.34] X-Barracuda-Start-Time: 1407944559 X-Barracuda-URL: http://192.168.25.113:8000/cgi-mod/mark.cgi X-Virus-Scanned: by bsmtpd at intermedix.com X-Barracuda-BRTS-Status: 1 Cc: "freebsd-stable@freebsd.org" X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 13 Aug 2014 15:56:58 -0000 > -----Original Message----- > From: Kurt Jaeger [mailto:lists@opsec.eu] > Sent: Wednesday, August 13, 2014 11:25 AM >=20 > Hi! >=20 > > 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. >=20 > Are you aware of the recent work on that topic ? >=20 > https://www.freebsd.org/news/status/report-2014-04-2014- > 06.html#PostgreSQL-Performance-Improvements >=20 > Maybe kib@ knows more about this ? >=20 I've recently read over this and some other posts, but they all seem to cen= ter 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, whic= h we aren't running. We're not too keen on the idea of using CURRENT in pr= oduction, either. We're planning on testing 10-STABLE, but I was just hopi= ng to gain some insight into what the problem may be and whether recent com= mits to vmdaemon code in the -STABLE tree may have a positive effect on wha= t we've seen. Steve