From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:56196) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uc03q-0004nq-Hd for qemu-devel@nongnu.org; Mon, 13 May 2013 17:13:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Uc03n-0006o9-UI for qemu-devel@nongnu.org; Mon, 13 May 2013 17:13:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:6640) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Uc03n-0006my-Mh for qemu-devel@nongnu.org; Mon, 13 May 2013 17:13:31 -0400 Message-ID: <5191576A.9050809@redhat.com> Date: Mon, 13 May 2013 23:13:14 +0200 From: Paolo Bonzini MIME-Version: 1.0 References: <1368477106-7579-1-git-send-email-aliguori@us.ibm.com> <51915319.4090801@redhat.com> <87r4haa8xq.fsf@codemonkey.ws> In-Reply-To: <87r4haa8xq.fsf@codemonkey.ws> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH for-1.5 1/2] qom: aggressively optimize qom casting List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Anthony Liguori Cc: qemu-devel@nongnu.org, Aurelien Jarno , Andreas Faerber Il 13/05/2013 23:04, Anthony Liguori ha scritto: > We should leave the --disable-qom-casts present for 1.5 but I'd like > to discuss reverting it for 1.6. I'll send patches once 1.6 opens up. I disagree, the cost is small but still provably nonzero. We should only remove it once interfaces start to be more pervasive (it would be nice for example to replace the RTC's #ifdef TARGET_I386 with an interface). Paolo