From owner-freebsd-questions@FreeBSD.ORG Sun Jan 17 14:07:40 2010 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4900A1065672 for ; Sun, 17 Jan 2010 14:07:40 +0000 (UTC) (envelope-from googhummel@gmail.com) Received: from mail-bw0-f213.google.com (mail-bw0-f213.google.com [209.85.218.213]) by mx1.freebsd.org (Postfix) with ESMTP id CD92C8FC0A for ; Sun, 17 Jan 2010 14:07:39 +0000 (UTC) Received: by bwz5 with SMTP id 5so1642197bwz.3 for ; Sun, 17 Jan 2010 06:07:38 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:in-reply-to:references :date:message-id:subject:from:to:cc:content-type; bh=sqm67RtzwUldv4rVuCIzpSYPzkL6R3O4/X+MJugO7lA=; b=ZKp8ZZoWs46l6bPqC0dqVJWGmPwPspw6Q/x/v+7TA+RkPrmfQR1JGfaftbudezeGv3 jET3C8fId6Mm54lXgZWKMcJVzsoOEfo4Ntmc6G+840zaAmTTgUmMWrfE8BI64PwjTtAu Tm3zyWMXiwKX1XSZqinsXXs127JhJMX21f8O8= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type; b=pWDzMMeqisKxur9AD9L+00YMaKE/9XHqNhof0LTvYh/FFTP98R6Ajo8SvGwjAHZ2Ll KdnaW39D03AP2j6MDinXemCvvJA2xN97pDRPW11fF9lB83HkW3oUkfm4pio2xvX1FtJy RjYJlsQR1jQ9GSZYiepo7l4aYKnL5RjUjnZPk= MIME-Version: 1.0 Received: by 10.204.33.138 with SMTP id h10mr867383bkd.197.1263737258586; Sun, 17 Jan 2010 06:07:38 -0800 (PST) In-Reply-To: <201001170203.02499.pieter@degoeje.nl> References: <201001170203.02499.pieter@degoeje.nl> Date: Sun, 17 Jan 2010 14:07:38 +0000 Message-ID: From: Thomas Hummel To: Pieter de Goeje Content-Type: text/plain; charset=ISO-8859-1 X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-questions@freebsd.org Subject: Re: Sound (micro-)interrupts with 8.0 stable/snd_hda/mplayer/vlc X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 17 Jan 2010 14:07:40 -0000 On Sun, Jan 17, 2010 at 1:03 AM, Pieter de Goeje wrote: Thanks for your reply, Try increasing the hw.snd.latency sysctl: > Going from 5 to 10 doesn't change anything (actually, it seems worse on the file I tried). So the mystery still stands... Note that the micro-interrupts don't occur always at the same timestamp in the file which is playing. If I play one, let's say 3 times in a row, sound may drop around the same moment each time but not necessary... Just thinking out loud here, but maybe you have some non-standard HZ > configured or powerd configured to clock the CPU back by an extreme amount, > both could theoretically cause buffer underruns. > I'm not quite sure I understand what you're thinking of. Anyway, I haven't changed any defaults : % cat /boot/loader.conf #zfs zfs_load="YES" vfs.root.mountfrom="zfs:zroot" # nividia nvidia_load="YES" # sound snd_hda_load="YES" hw.snd.default_unit=0 # k3b atapicam_load="YES" hw.ata.atapi_dma=1 -- Thomas.