From owner-freebsd-multimedia@FreeBSD.ORG Mon Jul 2 19:18:23 2007 Return-Path: X-Original-To: freebsd-multimedia@freebsd.org Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 7CD7F16A46E for ; Mon, 2 Jul 2007 19:18:23 +0000 (UTC) (envelope-from uspoerlein@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.173]) by mx1.freebsd.org (Postfix) with ESMTP id 0C9B113C4C5 for ; Mon, 2 Jul 2007 19:18:22 +0000 (UTC) (envelope-from uspoerlein@gmail.com) Received: by ug-out-1314.google.com with SMTP id o4so968632uge for ; Mon, 02 Jul 2007 12:18:22 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:received:received:date:from:to:subject:message-id:mail-followup-to:mime-version:content-type:content-disposition:user-agent; b=naQz8gWyJkQ37h/9JWO7kFqYIIzu9B5Q8Fp5Q7AomAPVJsZCNbeQs6Z7HXuqTOZJV/2ckYlz4YPYrI5xdLKgsMM426BI4iDbWfxH87ZV22P9ncOy9Q1+0G9NK7GL7Szu60+YrpuAb1a6/nE20csjlpb0IgT1x8lU1MnG89ywTYw= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:date:from:to:subject:message-id:mail-followup-to:mime-version:content-type:content-disposition:user-agent; b=oXVDwAG/kbTea0BoG/9jmVfiWVskYZcq3B74mc3zlvjRQ7/UX/u7tLpFTdK1D143ba9hbv+Ksw5wx/x481jGOMXbUXQUHk7q7gd552sZpcNmgncqHin3attebj4PAvP7fMzkINvR+vzYW9UdKdWZGf0H4kHqgEeMkNKPwh77nWM= Received: by 10.82.108.9 with SMTP id g9mr13509672buc.1183402274677; Mon, 02 Jul 2007 11:51:14 -0700 (PDT) Received: from roadrunner.q.local ( [85.180.175.253]) by mx.google.com with ESMTP id e8sm42157256muf.2007.07.02.11.51.13 (version=TLSv1/SSLv3 cipher=OTHER); Mon, 02 Jul 2007 11:51:13 -0700 (PDT) Received: from roadrunner.q.local (localhost [127.0.0.1]) by roadrunner.q.local (8.14.1/8.14.1) with ESMTP id l62Ip9wp001510 for ; Mon, 2 Jul 2007 20:51:09 +0200 (CEST) (envelope-from uspoerlein@gmail.com) Received: (from q@localhost) by roadrunner.q.local (8.14.1/8.14.1/Submit) id l62Ip9tw001509 for freebsd-multimedia@freebsd.org; Mon, 2 Jul 2007 20:51:09 +0200 (CEST) (envelope-from uspoerlein@gmail.com) Date: Mon, 2 Jul 2007 20:51:09 +0200 From: Ulrich Spoerlein To: freebsd-multimedia@freebsd.org Message-ID: <20070702185109.GA1438@roadrunner.q.local> Mail-Followup-To: freebsd-multimedia@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.15 (2007-04-06) Subject: syscons + mouse == stuttering playback X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 02 Jul 2007 19:18:23 -0000 Hi, on a recent CURRENT, without WITNESS or INVARIANTS. Both with SCHED_ULE and SCHED_4BSD I observed the following: Make sure almost nothing is running (to rule out other influences). Run mpg123 on some MP3 file. Then start moving the syscons mouse cursor. I get a high frequency stuttering on playback, playback is also slowed down. I'm using kern.hz=100, if it matters. Is somebody able to reproduce it? cat /dev/sndstat FreeBSD Audio Driver (newpcm: 32bit 2007061600/i386) Installed devices: pcm0: at io 0xf4fff800, 0xf4fff400 irq 9 bufsz 16384 kld snd_ich [MPSAFE] (1p:1v/1r:1v channels duplex default) dev.pcm.0.%desc: Intel ICH4 (82801DB) dev.pcm.0.%driver: pcm dev.pcm.0.%location: slot=31 function=5 handle=\_SB_.PCI0.AUD_ dev.pcm.0.%pnpinfo: vendor=0x8086 device=0x24c5 subvendor=0x1028 subdevice=0x0191 class=0x040100 dev.pcm.0.%parent: pci0 dev.pcm.0.eapd: 1 dev.pcm.0.play.vchans: 1 dev.pcm.0.play.vchanrate: 48000 dev.pcm.0.play.vchanformat: s16le dev.pcm.0.rec.vchans: 1 dev.pcm.0.rec.vchanrate: 48000 dev.pcm.0.rec.vchanformat: s16le dev.pcm.0.buffersize: 16384 dev.pcm.0.ac97rate: 48000 Cheers, Ulrich Spoerlein -- "The trouble with the dictionary is you have to know how the word is spelled before you can look it up to see how it is spelled." -- Will Cuppy