diff options
Diffstat (limited to 'docs/interop')
| -rw-r--r-- | docs/interop/qemu-img.rst | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/docs/interop/qemu-img.rst b/docs/interop/qemu-img.rst index fa27e5c7b4..42e4451db4 100644 --- a/docs/interop/qemu-img.rst +++ b/docs/interop/qemu-img.rst @@ -247,7 +247,7 @@ Command description: Amends the image format specific *OPTIONS* for the image file *FILENAME*. Not all file formats support this operation. -.. option:: bench [-c COUNT] [-d DEPTH] [-f FMT] [--flush-interval=FLUSH_INTERVAL] [-n] [-i AIO] [--no-drain] [-o OFFSET] [--pattern=PATTERN] [-q] [-s BUFFER_SIZE] [-S STEP_SIZE] [-t CACHE] [-w] [-U] FILENAME +.. option:: bench [-c COUNT] [-d DEPTH] [-f FMT] [--flush-interval=FLUSH_INTERVAL] [-i AIO] [-n] [--no-drain] [-o OFFSET] [--pattern=PATTERN] [-q] [-s BUFFER_SIZE] [-S STEP_SIZE] [-t CACHE] [-w] [-U] FILENAME Run a simple sequential I/O benchmark on the specified image. If ``-w`` is specified, a write test is performed, otherwise a read test is performed. @@ -264,13 +264,13 @@ Command description: ``--no-drain`` is specified, a flush is issued without draining the request queue first. + if ``-i`` is specified, *AIO* option can be used to specify different + AIO backends: ``threads``, ``native`` or ``io_uring``. + If ``-n`` is specified, the native AIO backend is used if possible. On Linux, this option only works if ``-t none`` or ``-t directsync`` is specified as well. - if ``-i`` is specified, *AIO* option can be used to specify different - AIO backends: ``threads``, ``native`` or ``io_uring``. - For write tests, by default a buffer filled with zeros is written. This can be overridden with a pattern byte specified by *PATTERN*. |