From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: Timer instability Date: Wed, 25 Feb 2009 16:04:45 +0100 Message-ID: References: <20090219024611.GA7930@tango.0pointer.de> <200902251234.37222.clive@vacuumtube.org.uk> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.suse.de (mail.suse.de [195.135.220.2]) by alsa0.perex.cz (Postfix) with ESMTP id C84B6103807 for ; Wed, 25 Feb 2009 16:04:45 +0100 (CET) In-Reply-To: <200902251234.37222.clive@vacuumtube.org.uk> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Clive Messer Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Wait a minute... At Wed, 25 Feb 2009 12:34:37 +0000, Clive Messer wrote: > > hwsync: 1108800(0), 1113216(0) > 25178947 25178947 25142834 0 4416 0 0 3 > hwsync: 1108800(0), 1113216(0) > 25693169 25693168 25657142 21697 -18264 0 1 3 The time leaps indeed here about 0.5 sec. Assuming this time-keeping is correct, the avail and delay values there are acceptable. In this case, apparently a buffer underrun occurs due to a sudden system load or so. It's no bug. Takashi