On Mon, Sep 28, 2015 at 05:51:39PM +0100, Dr. David Alan Gilbert (git) wrote: > From: "Dr. David Alan Gilbert" <dgilb...@redhat.com> > > 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
