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Diffstat (limited to 'qemu-img.texi')
| -rw-r--r-- | qemu-img.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/qemu-img.texi b/qemu-img.texi index afaebdd408..b6b28e3542 100644 --- a/qemu-img.texi +++ b/qemu-img.texi @@ -131,6 +131,16 @@ Skip the creation of the target volume Command description: @table @option +@item bench [-c @var{count}] [-d @var{depth}] [-f @var{fmt}] [-n] [-q] [-s @var{buffer_size}] [-t @var{cache}] @var{filename} + +Run a simple sequential read benchmark on the specified image. A total number +of @var{count} I/O requests is performed, each @var{buffer_size} bytes in size, +and with @var{depth} requests in parallel. + +If @code{-n} is specified, the native AIO backend is used if possible. On +Linux, this option only works if @code{-t none} or @code{-t directsync} is +specified as well. + @item check [-f @var{fmt}] [--output=@var{ofmt}] [-r [leaks | all]] [-T @var{src_cache}] @var{filename} Perform a consistency check on the disk image @var{filename}. The command can |