From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39563) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WVvGf-000706-MT for qemu-devel@nongnu.org; Thu, 03 Apr 2014 23:58:22 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1WVvGW-0008Bv-LH for qemu-devel@nongnu.org; Thu, 03 Apr 2014 23:58:13 -0400 Received: from e9.ny.us.ibm.com ([32.97.182.139]:56199) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1WVvGW-0008Bp-FE for qemu-devel@nongnu.org; Thu, 03 Apr 2014 23:58:04 -0400 Received: from /spool/local by e9.ny.us.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Thu, 3 Apr 2014 23:58:04 -0400 Received: from b01cxnp22034.gho.pok.ibm.com (b01cxnp22034.gho.pok.ibm.com [9.57.198.24]) by d01dlp01.pok.ibm.com (Postfix) with ESMTP id 4610538C803D for ; Thu, 3 Apr 2014 23:58:01 -0400 (EDT) Received: from d01av01.pok.ibm.com (d01av01.pok.ibm.com [9.56.224.215]) by b01cxnp22034.gho.pok.ibm.com (8.13.8/8.13.8/NCO v10.0) with ESMTP id s343w1ZQ6357362 for ; Fri, 4 Apr 2014 03:58:01 GMT Received: from d01av01.pok.ibm.com (localhost [127.0.0.1]) by d01av01.pok.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id s343w09n006947 for ; Thu, 3 Apr 2014 23:58:01 -0400 Message-ID: <533E2D74.8050207@linux.vnet.ibm.com> Date: Fri, 04 Apr 2014 11:56:36 +0800 From: "Michael R. Hines" MIME-Version: 1.0 References: <1392713429-18201-1-git-send-email-mrhines@linux.vnet.ibm.com> <1392713429-18201-12-git-send-email-mrhines@linux.vnet.ibm.com> <87r468z94z.fsf@elfo.mitica> In-Reply-To: <87r468z94z.fsf@elfo.mitica> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [RFC PATCH v2 11/12] mc: introduce new capabilities to control micro-checkpointing List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: quintela@redhat.com Cc: GILR@il.ibm.com, SADEKJ@il.ibm.com, BIRAN@il.ibm.com, hinesmr@cn.ibm.com, qemu-devel@nongnu.org, EREZH@il.ibm.com, owasserm@redhat.com, onom@us.ibm.com, junqing.wang@cs2c.com.cn, lig.fnst@cn.fujitsu.com, gokul@us.ibm.com, dbulkow@gmail.com, pbonzini@redhat.com, abali@us.ibm.com, isaku.yamahata@gmail.com, "Michael R. Hines" On 03/12/2014 06:02 AM, Juan Quintela wrote: > mrhines@linux.vnet.ibm.com wrote: >> From: "Michael R. Hines" >> >> New capabilities include the use of RDMA acceleration, >> use of network buffering, and keepalive support, as documented >> in patch #1. >> >> Signed-off-by: Michael R. Hines >> --- >> qapi-schema.json | 36 +++++++++++++++++++++++++++++++++++- >> 1 file changed, 35 insertions(+), 1 deletion(-) >> >> diff --git a/qapi-schema.json b/qapi-schema.json >> index 98abdac..1fdf208 100644 >> --- a/qapi-schema.json >> +++ b/qapi-schema.json >> @@ -720,10 +720,44 @@ >> # @auto-converge: If enabled, QEMU will automatically throttle down the guest >> # to speed up convergence of RAM migration. (since 1.6) >> # >> +# @mc: The migration will never end, and the VM will instead be continuously >> +# micro-checkpointed (MC). Use the command migrate-set-mc-delay to >> +# control the frequency at which the checkpoints occur. >> +# Disabled by default. (Since 2.x) >> +# >> +# @mc-net-disable: Deactivate network buffering against outbound network >> +# traffic while Micro-Checkpointing (@mc) is active. >> +# Enabled by default. Disabling will make the MC protocol inconsistent >> +# and potentially break network connections upon an actual failure. >> +# Only for performance testing. (Since 2.x) > If it is dangerous, can we put dangerous/unsafe on the name? Having an option that > can corrupt things make me nervous. You got it =) - Michael