This gives us back reasonable savevm performance, which regressed in commit 500f0061.
Kevin Wolf (4): block: Introduce bdrv_writev_vmstate savevm: Implement block_writev_buffer() block: Introduce bdrv_pwritev() for qcow2_save_vmstate qemu-iotests: A few more bdrv_pread/pwrite tests block.c | 105 +++++++++++++++++++++++++++++++----------- block/qcow2.c | 6 +-- block/sheepdog.c | 13 ++++-- include/block/block.h | 3 ++ include/block/block_int.h | 4 +- include/migration/qemu-file.h | 2 +- savevm.c | 25 ++++++++-- tests/qemu-iotests/002 | 13 ++++++ tests/qemu-iotests/002.out | 26 +++++++++++ 9 files changed, 157 insertions(+), 40 deletions(-) -- 1.8.1.4