From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:43359) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q9Xux-0003cO-9V for qemu-devel@nongnu.org; Tue, 12 Apr 2011 03:21:44 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q9Xuw-0002Jt-7u for qemu-devel@nongnu.org; Tue, 12 Apr 2011 03:21:43 -0400 Received: from mx1.redhat.com ([209.132.183.28]:58489) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q9Xuv-0002JY-I9 for qemu-devel@nongnu.org; Tue, 12 Apr 2011 03:21:42 -0400 Message-ID: <4DA3FAA2.9050302@redhat.com> Date: Tue, 12 Apr 2011 09:09:22 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v2 0/3] io-thread optimizations List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jan Kiszka Cc: Anthony Liguori , Marcelo Tosatti , qemu-devel@nongnu.org, Aurelien Jarno On 04/11/2011 10:27 PM, Jan Kiszka wrote: > These patches were posted before. They bring down the overhead of the > io-thread mode for TCG here, specifically when emulating SMP. > > The major change in this version, besides rebasing, is the exclusion of > KVM from the main loop polling optimization. > > > > Jan Kiszka (3): > Do not drop global mutex for polled main loop runs > Poll main loop after I/O events were received > Do not kick vcpus in TCG mode > > cpus.c | 2 +- > sysemu.h | 2 +- > vl.c | 22 ++++++++++++++++------ > 3 files changed, 18 insertions(+), 8 deletions(-) > Reviewed-by: Paolo Bonzini