From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:38780) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZZcri-0003Q1-H5 for qemu-devel@nongnu.org; Wed, 09 Sep 2015 06:44:35 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZZcrf-0004hY-RV for qemu-devel@nongnu.org; Wed, 09 Sep 2015 06:44:34 -0400 Received: from mx1.redhat.com ([209.132.183.28]:33405) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZZcrf-0004hM-NN for qemu-devel@nongnu.org; Wed, 09 Sep 2015 06:44:31 -0400 From: Juan Quintela In-Reply-To: <1441732357-11861-4-git-send-email-jjherne@linux.vnet.ibm.com> (Jason J. Herne's message of "Tue, 8 Sep 2015 13:12:35 -0400") References: <1441732357-11861-1-git-send-email-jjherne@linux.vnet.ibm.com> <1441732357-11861-4-git-send-email-jjherne@linux.vnet.ibm.com> Date: Wed, 09 Sep 2015 12:44:29 +0200 Message-ID: <87613j7tyq.fsf@neno.neno> MIME-Version: 1.0 Content-Type: text/plain Subject: Re: [Qemu-devel] [PATCH v7 3/5] migration: Dynamic cpu throttling for auto-converge Reply-To: quintela@redhat.com List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Jason J. Herne" Cc: qemu-devel@nongnu.org, dgilbert@redhat.com, borntraeger@de.ibm.com, amit.shah@redhat.com, pbonzini@redhat.com, afaerber@suse.de "Jason J. Herne" wrote: > Remove traditional auto-converge static 30ms throttling code and replace it > with a dynamic throttling algorithm. > > Additionally, be more aggressive when deciding when to start throttling. > Previously we waited until four unproductive memory passes. Now we begin > throttling after only two unproductive memory passes. Four seemed quite > arbitrary and only waiting for two passes allows us to complete the migration > faster. > > Signed-off-by: Jason J. Herne > Reviewed-by: Matthew Rosato Reviewed-by: Juan Quintela