Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755837Ab3JJOup (ORCPT ); Thu, 10 Oct 2013 10:50:45 -0400 Received: from mail.electro-mechanical.com ([216.184.71.30]:56995 "EHLO mail.electro-mechanical.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755805Ab3JJOun (ORCPT ); Thu, 10 Oct 2013 10:50:43 -0400 X-Greylist: delayed 1623 seconds by postgrey-1.27 at vger.kernel.org; Thu, 10 Oct 2013 10:50:43 EDT Date: Thu, 10 Oct 2013 10:23:33 -0400 From: William Thompson To: linux-kernel@vger.kernel.org Subject: Burning multiple CD/DVDs at one time is slow (3.4.55 x86_64) Message-ID: <20131010142333.GB27550@electro-mechanical.com> Reply-To: William Thompson MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 559 Lines: 14 Please keep me in the CC. I tried burning 2 DVDs at the same time. Both processes completed however there were buffer underruns and the speed was no more than 4x. Each burner individually can do upto 16x and I have seen the burn end at 16-17x. The parallel burns ended no higher than 6x. Why is this so slow? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/