From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:33129) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YGyAt-0004IW-CQ for qemu-devel@nongnu.org; Thu, 29 Jan 2015 18:07:00 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YGyAp-0002fS-CV for qemu-devel@nongnu.org; Thu, 29 Jan 2015 18:06:59 -0500 Received: from mail-wi0-x22c.google.com ([2a00:1450:400c:c05::22c]:60641) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YGyAp-0002fK-5K for qemu-devel@nongnu.org; Thu, 29 Jan 2015 18:06:55 -0500 Received: by mail-wi0-f172.google.com with SMTP id h11so33567587wiw.5 for ; Thu, 29 Jan 2015 15:06:54 -0800 (PST) Sender: Paolo Bonzini Message-ID: <54CABD0A.1090207@redhat.com> Date: Fri, 30 Jan 2015 00:06:50 +0100 From: Paolo Bonzini MIME-Version: 1.0 References: <20150129203728.6cb9271e@crunchbang> In-Reply-To: <20150129203728.6cb9271e@crunchbang> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 8bit Subject: Re: [Qemu-devel] QEMU and Real Time OS List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: =?windows-1252?Q?Marc_Mar=ED?= , qemu-devel On 29/01/2015 20:37, Marc Marí wrote: > Is this an expected behaviour? I can't see why. > > I'd like to know if there is a certain reason why it doesn't work. Or > if it should work and the problem is too much I/O overhead. Or any > other hint to understand it. It is due to latencies in the host. You need at least to use preempt-rt kernels in the host as well. Paolo