From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1G6ugM-0006Zm-Ij for qemu-devel@nongnu.org; Sat, 29 Jul 2006 15:41:06 -0400 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1G6ugL-0006YK-2e for qemu-devel@nongnu.org; Sat, 29 Jul 2006 15:41:06 -0400 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1G6ugK-0006YD-VN for qemu-devel@nongnu.org; Sat, 29 Jul 2006 15:41:04 -0400 Received: from [217.10.32.17] (helo=comtv.ru) by monty-python.gnu.org with esmtp (Exim 4.52) id 1G6uic-0006Pk-4G for qemu-devel@nongnu.org; Sat, 29 Jul 2006 15:43:26 -0400 Received: from av1474.oops ([10.0.66.9] verified) by comtv.ru (CommuniGate Pro SMTP 4.1.8) with ESMTP id 162294091 for qemu-devel@nongnu.org; Sat, 29 Jul 2006 22:41:12 +0400 Date: Sat, 29 Jul 2006 22:42:15 +0400 (MSD) From: malc Subject: Re: [Qemu-devel] Performance issues with -usb In-Reply-To: <44CBA773.4040007@win4lin.com> Message-ID: References: <44C48DAD.9010301@wasp.net.au> <1153733038.4270.8.camel@vaio> <44C49A23.6010103@wasp.net.au> <44CBA773.4040007@win4lin.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org On Sat, 29 Jul 2006, Leonardo E. Reiter wrote: > Brad, > > I think the 0x20 (32ms) value might be fine for something like VNC > display, but on a local display the mouse response is noticeably slow > (for me at least.) I tried using 0x0a (10), same as the plain USB > mouse, but the idle CPU utilization was still around 10%. What is > really odd is that this was not a problem in older versions of QEMU, > unless I'm reading data incorrectly. Do you know what else might have > changed? I will look as well and see if I can apply some logic to this. > I suspect it's probably something with the new clock mechanism, but it > still doesn't make a lot of sense to me. Sometime after usbtablet hit the CVS i tried it out and the first thing i noticed was the cpu load. On june 12 i tried to figure out if one of the patch authors (Anthony Liguori) is aware of the situation. So it's not related to gettimeofday switchover. -- mailto:malc@pulsesoft.com