From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:60781) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1baQ2y-0004EX-RJ for qemu-devel@nongnu.org; Thu, 18 Aug 2016 12:20:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1baQ2u-0006w9-Jf for qemu-devel@nongnu.org; Thu, 18 Aug 2016 12:19:59 -0400 Received: from smtprelay0101.hostedemail.com ([216.40.44.101]:55984 helo=smtprelay.hostedemail.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1baQ2u-0006vv-FK for qemu-devel@nongnu.org; Thu, 18 Aug 2016 12:19:56 -0400 Date: Thu, 18 Aug 2016 12:19:50 -0400 From: Steven Rostedt Message-ID: <20160818121950.6a8d3c2d@gandalf.local.home> In-Reply-To: <20160818105424.GD4850@stefanha-x1.localdomain> References: <147041636348.2523.2954972609232949598.stgit@fimbulvetr.bsc.es> <20160818105424.GD4850@stefanha-x1.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH 0/6] hypertrace: Lightweight guest-to-QEMU trace channel List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Hajnoczi Cc: =?UTF-8?B?TGx1w61z?= Vilanova , qemu-devel@nongnu.org, Stefan Hajnoczi , Masami Hiramatsu , Luiz Capitulino , lttng-dev@lists.lttng.org On Thu, 18 Aug 2016 11:54:24 +0100 Stefan Hajnoczi wrote: > Steven is working on a host/guest solution for trace-cmd. It is also > asynchronous. No new paravirt hardware is needed and it makes me wonder > whether the hypertrace PCI device is trying to solve the problem at the > wrong layer. Yes, and I'm currently working on it again. In fact, if any of you will be at LinuxCon in Toronto next week, I'll be presenting[1] what I have and what I plan to complete in the near future. -- Steve [1] https://lcccna2016.sched.org/event/7JWL/trace-cmd-virt-server-a-status-update-steven-rostedt-red-hat?iframe=no&w=i:100;&sidebar=yes&bg=no