From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:49438) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QbmMS-0003hn-7Q for qemu-devel@nongnu.org; Wed, 29 Jun 2011 00:26:53 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QbmMR-0007ri-4N for qemu-devel@nongnu.org; Wed, 29 Jun 2011 00:26:48 -0400 Received: from mail-pw0-f45.google.com ([209.85.160.45]:61178) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QbmMQ-0007rY-Uw for qemu-devel@nongnu.org; Wed, 29 Jun 2011 00:26:47 -0400 Received: by pwi5 with SMTP id 5so658370pwi.4 for ; Tue, 28 Jun 2011 21:26:46 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <4E088EA8.50000@redhat.com> References: <1307617825-17149-1-git-send-email-pbonzini@redhat.com> <4E088EA8.50000@redhat.com> From: Alexandre Raymond Date: Wed, 29 Jun 2011 00:26:26 -0400 Message-ID: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Qemu-devel] [PATCH 0/2] iothread improvements for Mac OS X List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: =?UTF-8?Q?Andreas_F=C3=A4rber?= , Alexander Graf , qemu-devel@nongnu.org Hi Paolo, > Ping? 1/2 is probably somehow working around the sigmask problem fixed by > Alexandre (Mac people, can you check?), but it is way more readable than = the > fair_mutex IMNSHO. =C2=A0I would be surprised if 2/2 also turned out to b= e a > workaround, but even if this were the case, it makes CPU usage lower. Those patches (I tested them together) do indeed appear to work around the freezes I was encountering with io-thread enabled on OS X. I get dma timeout errors when trying to boot Linux, but they don't seem related to this patch as I got the same errors with the patches I submitted a couple of weeks ago. Alexandre -- Tested-by: Alexandre Raymond