From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:35257) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZhEb3-00072P-90 for qemu-devel@nongnu.org; Wed, 30 Sep 2015 06:26:50 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZhEay-00041t-8x for qemu-devel@nongnu.org; Wed, 30 Sep 2015 06:26:49 -0400 Received: from e23smtp08.au.ibm.com ([202.81.31.141]:54422) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZhEax-00040q-MW for qemu-devel@nongnu.org; Wed, 30 Sep 2015 06:26:44 -0400 Received: from /spool/local by e23smtp08.au.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Wed, 30 Sep 2015 20:26:38 +1000 Received: from d23relay09.au.ibm.com (d23relay09.au.ibm.com [9.185.63.181]) by d23dlp02.au.ibm.com (Postfix) with ESMTP id 78C192BB0054 for ; Wed, 30 Sep 2015 20:26:34 +1000 (EST) Received: from d23av03.au.ibm.com (d23av03.au.ibm.com [9.190.234.97]) by d23relay09.au.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id t8UAQPxq61997260 for ; Wed, 30 Sep 2015 20:26:34 +1000 Received: from d23av03.au.ibm.com (localhost [127.0.0.1]) by d23av03.au.ibm.com (8.14.4/8.14.4/NCO v10.0 AVout) with ESMTP id t8UAQ1GM020030 for ; Wed, 30 Sep 2015 20:26:01 +1000 Date: Wed, 30 Sep 2015 15:55:38 +0530 From: Bharata B Rao Message-ID: <20150930102538.GA16453@in.ibm.com> References: <1443459153-10965-1-git-send-email-dgilbert@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1443459153-10965-1-git-send-email-dgilbert@redhat.com> Subject: Re: [Qemu-devel] [PATCH v8 00/54] Postcopy implementation Reply-To: bharata@linux.vnet.ibm.com List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Dr. David Alan Gilbert (git)" Cc: aarcange@redhat.com, quintela@redhat.com, liang.z.li@intel.com, qemu-devel@nongnu.org, luis@cs.umu.se, amit.shah@redhat.com, pbonzini@redhat.com On Mon, Sep 28, 2015 at 05:51:39PM +0100, Dr. David Alan Gilbert (git) wrote: > From: "Dr. David Alan Gilbert" > > This is the 8th cut of my version of postcopy. > > The userfaultfd linux kernel code is now in the upstream kernel > tree, and so 4.3-rc3 can be used without modification. > > This qemu series can be found at: > https://github.com/orbitfp7/qemu.git > on the wp3-postcopy-v8 tag > > > Testing status: > * Tested heavily on x86 > * Smoke tested on aarch64 (so it does work on different page sizes) > * Power is unhappy for me (but gets further than the htab problem > v7 used to have) (I get a kvm run failed) Seems to be completing successfully on Power. But it takes 2min for the migration status to transition from setup to active. Host: 4.3.0-rc3+ Guest: 4.3.0-rc3+ QEMU: wp3-postcopy-v8 of your tree. # ./ppc64-softmmu/qemu-system-ppc64 --enable-kvm --nographic -machine pseries -m 8G,slots=32,maxmem=32G -device virtio-blk-pci,drive=rootdisk -drive file=/home/bharata/F20-snap1,if=none,cache=none,id=rootdisk,format=qcow2 -vga none -net nic,model=virtio -net user -redir tcp:2000::22 -smp 16,maxcpus=32 -serial pty (qemu) migrate_set_capability x-postcopy-ram on (qemu) migrate -d tcp:localhost:4444 (qemu) info migrate capabilities: xbzrle: off rdma-pin-all: off auto-converge: off zero-blocks: off compress: off events: off x-postcopy-ram: on Migration status: setup total time: 0 milliseconds same status for around 2min... (qemu) info migrate capabilities: xbzrle: off rdma-pin-all: off auto-converge: off zero-blocks: off compress: off events: off x-postcopy-ram: on Migration status: active total time: 130089 milliseconds expected downtime: 300 milliseconds setup: 24 milliseconds transferred ram: 79454 kbytes throughput: 50.09 mbps remaining ram: 7670688 kbytes total ram: 8388864 kbytes duplicate: 160684 pages skipped: 0 pages normal: 18860 pages normal bytes: 75440 kbytes dirty sync count: 1 (qemu) migrate_start_postcopy (qemu) info migrate capabilities: xbzrle: off rdma-pin-all: off auto-converge: off zero-blocks: off compress: off events: off x-postcopy-ram: on Migration status: postcopy-active total time: 135627 milliseconds expected downtime: 43 milliseconds setup: 24 milliseconds transferred ram: 338598 kbytes throughput: 74.02 mbps remaining ram: 1688384 kbytes total ram: 8388864 kbytes duplicate: 1600406 pages skipped: 0 pages normal: 75258 pages normal bytes: 301032 kbytes dirty sync count: 0 dirty pages rate: 98 pages (qemu) info migrate capabilities: xbzrle: off rdma-pin-all: off auto-converge: off zero-blocks: off compress: off events: off x-postcopy-ram: on Migration status: completed total time: 136898 milliseconds downtime: 685 milliseconds setup: 24 milliseconds transferred ram: 1194196 kbytes throughput: 72.00 mbps remaining ram: 0 kbytes total ram: 8388864 kbytes duplicate: 1810921 pages skipped: 0 pages normal: 286839 pages normal bytes: 1147356 kbytes dirty sync count: 2