diff options
| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2021-01-17 00:47:00 +0300 |
|---|---|---|
| committer | Max Reitz <mreitz@redhat.com> | 2021-01-26 14:36:37 +0100 |
| commit | 6a30f663d4c0b3c45a544d541e0c4e214b2473a1 (patch) | |
| tree | a06a3470d60f54af6f648bdf41ed61538faa18d2 /qapi/block-core.json | |
| parent | 71eed4cebed487a4f3c9f97aba83c611bbe22f8d (diff) | |
qapi: backup: disable copy_range by default
Further commit will add a benchmark
(scripts/simplebench/bench-backup.py), which will show that backup
works better with async parallel requests (previous commit) and
disabled copy_range. So, let's disable copy_range by default.
Note: the option was added several commits ago with default to true,
to follow old behavior (the feature was enabled unconditionally), and
only now we are going to change the default behavior.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20210116214705.822267-19-vsementsov@virtuozzo.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Diffstat (limited to 'qapi/block-core.json')
| -rw-r--r-- | qapi/block-core.json | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/qapi/block-core.json b/qapi/block-core.json index abcd41ed63..9f555d5c1d 100644 --- a/qapi/block-core.json +++ b/qapi/block-core.json @@ -1377,7 +1377,7 @@ # Optional parameters for backup. These parameters don't affect # functionality, but may significantly affect performance. # -# @use-copy-range: Use copy offloading. Default true. +# @use-copy-range: Use copy offloading. Default false. # # @max-workers: Maximum number of parallel requests for the sustained background # copying process. Doesn't influence copy-before-write operations. |