From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:43975) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SF4CB-0003MD-Rz for qemu-devel@nongnu.org; Tue, 03 Apr 2012 09:55:10 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1SF4C3-0007tJ-T8 for qemu-devel@nongnu.org; Tue, 03 Apr 2012 09:54:49 -0400 Received: from blade3.isti.cnr.it ([194.119.192.19]:3585) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1SF4C3-0007ph-Lz for qemu-devel@nongnu.org; Tue, 03 Apr 2012 09:54:43 -0400 Received: from [192.168.7.52] ([155.253.6.254]) by mx.isti.cnr.it (PMDF V6.5-x6 #31988) with ESMTPSA id <01ODVYMJ1WRGLJG3TS@mx.isti.cnr.it> for qemu-devel@nongnu.org; Tue, 03 Apr 2012 15:54:38 +0200 (MEST) Date: Tue, 03 Apr 2012 15:52:46 +0200 From: Reeted In-reply-to: <4F7AEC7D.7020701@shiftmail.org> Message-id: <4F7B00AE.8000308@shiftmail.org> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=UTF-8 Content-transfer-encoding: 7bit References: <4F7AEC7D.7020701@shiftmail.org> Subject: Re: [Qemu-devel] USB 2.0 printer passthrough very slow List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On 04/03/12 14:26, Reeted wrote: > .... > My canon IP4700 now takes 3 to 4 minutes for a print job to execute > and clear from the queue. That's almost unusable. > .... I am seeing new patches in qemu master branch (i.e. newer than 1.0.1), related to the pipelining of ehci commands by Gerd Hoffmann. Is that going to increase speed significantly like at least 2x ? Thank you