From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: [Qemu-devel] [PATCH][RFC] Linux AIO support when using O_DIRECT Date: Mon, 23 Mar 2009 15:32:02 -0500 Message-ID: <49C7F1C2.2010001@codemonkey.ws> References: <1237823124-6417-1-git-send-email-aliguori@us.ibm.com> <49C7B620.8030203@redhat.com> <49C7C392.3030001@codemonkey.ws> <49C7E9CE.50506@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org To: Avi Kivity Return-path: Received: from mail-qy0-f118.google.com ([209.85.221.118]:52774 "EHLO mail-qy0-f118.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753602AbZCWUcH (ORCPT ); Mon, 23 Mar 2009 16:32:07 -0400 Received: by qyk16 with SMTP id 16so2862907qyk.33 for ; Mon, 23 Mar 2009 13:32:05 -0700 (PDT) In-Reply-To: <49C7E9CE.50506@redhat.com> Sender: kvm-owner@vger.kernel.org List-ID: Avi Kivity wrote: > >> >> We would drop the signaling stuff and have the thread pool use an fd >> to signal. The big problem with that right now is that it'll cause a >> performance regression for certain platforms until we have the IO >> thread in place. > > Well, let's merge this after the iothread? Yup. Just posted that patch in case anyone was interested. I needed it so that we could do some performance testing... Regards, Anthony Liguori