From owner-freebsd-amd64@FreeBSD.ORG Thu Sep 1 08:53:41 2005 Return-Path: X-Original-To: freebsd-amd64@freebsd.org Delivered-To: freebsd-amd64@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 2BE1616A41F for ; Thu, 1 Sep 2005 08:53:41 +0000 (GMT) (envelope-from kometen@gmail.com) Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.193]) by mx1.FreeBSD.org (Postfix) with ESMTP id 84F8243D48 for ; Thu, 1 Sep 2005 08:53:40 +0000 (GMT) (envelope-from kometen@gmail.com) Received: by wproxy.gmail.com with SMTP id i32so116518wra for ; Thu, 01 Sep 2005 01:53:39 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=nF86IIvo8/xIwh0Bq7858BvIsEzcYncGPYMabybuxQcWFWVc7yhjKTxAdhKQaSXsc8lXbx7WRiYA14Mn4a5VvpTN11R+r6OWWbi1V3MTovtwvNztzoEPIaqGJH9hVxfAEXiJgHu1jF/iZpUVFwVTI5+B1ye7SK6dsgUJVwgDaT4= Received: by 10.54.38.51 with SMTP id l51mr1138289wrl; Thu, 01 Sep 2005 01:53:39 -0700 (PDT) Received: by 10.54.145.18 with HTTP; Thu, 1 Sep 2005 01:53:39 -0700 (PDT) Message-ID: Date: Thu, 1 Sep 2005 10:53:39 +0200 From: Claus Guttesen To: Norberto Meijome In-Reply-To: <4316A5BC.1000405@meijome.net> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline References: <4316A5BC.1000405@meijome.net> Cc: freebsd-amd64@freebsd.org Subject: Re: Which SCHED_ for DB server X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 01 Sep 2005 08:53:41 -0000 > I'm building a server that will run PostgreSQL with a database > containing several 10s of million records. The only things happening on > this box will be the SQL processes and other processes to parse raw data > and load into the DB. Users =3D a few connections via HTTP from an > intranet server (not more than 5 concurrently). >=20 > I was wondering what is the best SCHED_ to set in the kernel. > I currently have SCHED_4BSD but was wondering if _ULE would be better > for this For prod. use I would recommend SCHED_4BSD atm. The 4BSD-scheduler does seem to be more stable on SMP and up. regards Claus