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Re: [Qemu-devel] [PATCH v8 00/54] Postcopy implementation
From: |
Bharata B Rao |
Subject: |
Re: [Qemu-devel] [PATCH v8 00/54] Postcopy implementation |
Date: |
Wed, 30 Sep 2015 15:55:38 +0530 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
On Mon, Sep 28, 2015 at 05:51:39PM +0100, Dr. David Alan Gilbert (git) wrote:
> From: "Dr. David Alan Gilbert" <address@hidden>
>
> 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
- [Qemu-devel] [PATCH v8 46/54] postcopy: Check order of received target pages, (continued)
- [Qemu-devel] [PATCH v8 46/54] postcopy: Check order of received target pages, Dr. David Alan Gilbert (git), 2015/10/01
- [Qemu-devel] [PATCH v8 47/54] Round up RAMBlock sizes to host page sizes, Dr. David Alan Gilbert (git), 2015/10/01
- [Qemu-devel] [PATCH v8 48/54] Postcopy; Handle userfault requests, Dr. David Alan Gilbert (git), 2015/10/01
- [Qemu-devel] [PATCH v8 50/54] postcopy: Wire up loadvm_postcopy_handle_ commands, Dr. David Alan Gilbert (git), 2015/10/01
- [Qemu-devel] [PATCH v8 49/54] Start up a postcopy/listener thread ready for incoming page data, Dr. David Alan Gilbert (git), 2015/10/01
- [Qemu-devel] [PATCH v8 51/54] Postcopy: Mark nohugepage before discard, Dr. David Alan Gilbert (git), 2015/10/01
- [Qemu-devel] [PATCH v8 52/54] End of migration for postcopy, Dr. David Alan Gilbert (git), 2015/10/01
- [Qemu-devel] [PATCH v8 53/54] Disable mlock around incoming postcopy, Dr. David Alan Gilbert (git), 2015/10/01
- [Qemu-devel] [PATCH v8 54/54] Inhibit ballooning during postcopy, Dr. David Alan Gilbert (git), 2015/10/01
- Re: [Qemu-devel] [PATCH v8 00/54] Postcopy implementation,
Bharata B Rao <=
Re: [Qemu-devel] [PATCH v8 00/54] Postcopy implementation, Bharata B Rao, 2015/10/08