diff options
Diffstat (limited to 'tests/qemu-iotests/219')
| -rwxr-xr-x | tests/qemu-iotests/219 | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/tests/qemu-iotests/219 b/tests/qemu-iotests/219 index 16c3ca7fff..d1757e9e6f 100755 --- a/tests/qemu-iotests/219 +++ b/tests/qemu-iotests/219 @@ -204,13 +204,13 @@ with iotests.FilePath('disk.img') as disk_path, \ # but related to this also automatic state transitions like job # completion), but still get pause points often enough to avoid making this # test very slow, it's important to have the right ratio between speed and - # buf_size. + # copy-chunk-size. # - # For backup, buf_size is hard-coded to the source image cluster size (64k), - # so we'll pick the same for mirror. The slice time, i.e. the granularity - # of the rate limiting is 100ms. With a speed of 256k per second, we can - # get four pause points per second. This gives us 250ms per iteration, - # which should be enough to stay deterministic. + # Chose 64k copy-chunk-size both for mirror (by buf_size) and backup (by + # x-max-chunk). The slice time, i.e. the granularity of the rate limiting + # is 100ms. With a speed of 256k per second, we can get four pause points + # per second. This gives us 250ms per iteration, which should be enough to + # stay deterministic. test_job_lifecycle(vm, 'drive-mirror', has_ready=True, job_args={ 'device': 'drive0-node', @@ -227,6 +227,7 @@ with iotests.FilePath('disk.img') as disk_path, \ 'target': copy_path, 'sync': 'full', 'speed': 262144, + 'x-perf': {'max-chunk': 65536}, 'auto-finalize': auto_finalize, 'auto-dismiss': auto_dismiss, }) |