From owner-freebsd-multimedia@FreeBSD.ORG Fri Jul 8 07:40:35 2005 Return-Path: X-Original-To: multimedia@freebsd.org Delivered-To: freebsd-multimedia@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4095D16A41C for ; Fri, 8 Jul 2005 07:40:35 +0000 (GMT) (envelope-from pyunyh@gmail.com) Received: from wproxy.gmail.com (wproxy.gmail.com [64.233.184.192]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5504643D4C for ; Fri, 8 Jul 2005 07:40:34 +0000 (GMT) (envelope-from pyunyh@gmail.com) Received: by wproxy.gmail.com with SMTP id 58so407106wri for ; Fri, 08 Jul 2005 00:40:33 -0700 (PDT) DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:date:from:to:cc:subject:message-id:reply-to:references:mime-version:content-type:content-disposition:in-reply-to:user-agent; b=G/8d11RMIzr2bsxmpLHs21OnLxbNlD+F8jUIM+HFOcrEqipVV1/uBUT3nQRNHBAPXECFfAS1Boyi7QClpOYv1AwJKcsJf6Re9OwvbiOYnYKMem/4VOWf4nt04I0+COY09xomgMo/p9W+6TxmLGrQ97ZUTaIey8Dsta7eHDWs0bM= Received: by 10.54.45.76 with SMTP id s76mr1377840wrs; Fri, 08 Jul 2005 00:40:33 -0700 (PDT) Received: from michelle.rndsoft.co.kr ([211.32.202.209]) by mx.gmail.com with ESMTP id 6sm2242736wrl.2005.07.08.00.40.32; Fri, 08 Jul 2005 00:40:33 -0700 (PDT) Received: from michelle.rndsoft.co.kr (localhost.rndsoft.co.kr [127.0.0.1]) by michelle.rndsoft.co.kr (8.13.1/8.13.1) with ESMTP id j687eT9U018218 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Fri, 8 Jul 2005 16:40:29 +0900 (KST) (envelope-from yongari@rndsoft.co.kr) Received: (from yongari@localhost) by michelle.rndsoft.co.kr (8.13.1/8.13.1/Submit) id j687eS0v018217; Fri, 8 Jul 2005 16:40:28 +0900 (KST) (envelope-from yongari@rndsoft.co.kr) Date: Fri, 8 Jul 2005 16:40:28 +0900 From: Pyun YongHyeon To: Luigi Rizzo Message-ID: <20050708074028.GE16674@rndsoft.co.kr> References: <20050708053845.GL19707@wantadilla.lemis.com> <20050708000647.C1247@xorpc.icir.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20050708000647.C1247@xorpc.icir.org> User-Agent: Mutt/1.4.2.1i Cc: Greg 'groggy' Lehey , multimedia@freebsd.org Subject: Re: Best processor for multimedia? X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: pyunyh@gmail.com List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 08 Jul 2005 07:40:35 -0000 On Fri, Jul 08, 2005 at 12:06:47AM -0700, Luigi Rizzo wrote: > On Fri, Jul 08, 2005 at 03:08:45PM +0930, Greg 'groggy' Lehey wrote: > > I'm thinking of building a new, quite fast system for multimedia, > > notably displaying MPEGs. I'm currently using mplayer on an Athlon > > 1700, and from time to time there are hiccoughs. Processors are cheap > > apart from the obvious optimizations (such as using mplayer compiled > for the specific flags for your CPU) i believe the hiccups are more > likely due to CPU and disk not being available when you need, rather > than raw CPU speed (above a certain level, that is). I'd try to > tweak process priority and things such as HZ and kern.quantum. > I agree. Have you tried recent -CURRENT which has the jeff's enhancements(vfs_bio.c rev. 1.487) for audio playback? See http://lists.freebsd.org/pipermail/freebsd-current/2005-June/051103.html. If you still suffer from hiccup, I'd like to know which H/W and driver you tried. -- Regards, Pyun YongHyeon