numa: Silence incomplete mapping warning under qtest

[qemu.git] / qemu-img.texi

diff --git a/qemu-img.texi b/qemu-img.texi
index 174aae38b7511eef572a8d1e186b3876743e284f..50a2364e80e41ac223c68c6f483abe6e87103794 100644 (file)
--- a/qemu-img.texi
+++ b/qemu-img.texi
@@ -84,7 +84,8 @@ with or without a command shows help and lists the supported formats
 @item -p
 display progress bar (compare, convert and rebase commands only).
 If the @var{-p} option is not used for a command that supports it, the
-progress is reported when the process receives a @code{SIGUSR1} signal.
+progress is reported when the process receives a @code{SIGUSR1} or
+@code{SIGINFO} signal.
 @item -q
 Quiet mode - do not print any output (except errors). There's no progress bar
 in case both @var{-q} and @var{-p} options are used.
@@ -137,6 +138,12 @@ Parameters to convert subcommand:
 
 @item -n
 Skip the creation of the target volume
+@item -m
+Number of parallel coroutines for the convert process
+@item -W
+Allow out-of-order writes to the destination. This option improves performance,
+but is only recommended for preallocated devices like host devices or other
+raw block devices.
 @end table
 
 Parameters to dd subcommand:
@@ -218,7 +225,7 @@ If @code{-r} is specified, exit codes representing the image state refer to the
 state after (the attempt at) repairing it. That is, a successful @code{-r all}
 will yield the exit code 0, independently of the image state before.
 
-@item create [-f @var{fmt}] [-o @var{options}] @var{filename} [@var{size}]
+@item create [-f @var{fmt}] [-b @var{backing_file}] [-F @var{backing_fmt}] [-o @var{options}] @var{filename} [@var{size}]
 
 Create the new disk image @var{filename} of size @var{size} and format
 @var{fmt}. Depending on the file format, you can add one or more @var{options}
@@ -296,7 +303,7 @@ Error on reading data
 
 @end table
 
-@item convert [-c] [-p] [-n] [-f @var{fmt}] [-t @var{cache}] [-T @var{src_cache}] [-O @var{output_fmt}] [-o @var{options}] [-s @var{snapshot_id_or_name}] [-l @var{snapshot_param}] [-S @var{sparse_size}] @var{filename} [@var{filename2} [...]] @var{output_filename}
+@item convert [-c] [-p] [-n] [-f @var{fmt}] [-t @var{cache}] [-T @var{src_cache}] [-O @var{output_fmt}] [-B @var{backing_file}] [-o @var{options}] [-s @var{snapshot_id_or_name}] [-l @var{snapshot_param}] [-m @var{num_coroutines}] [-W] [-S @var{sparse_size}] @var{filename} [@var{filename2} [...]] @var{output_filename}
 
 Convert the disk image @var{filename} or a snapshot @var{snapshot_param}(@var{snapshot_id_or_name} is deprecated)
 to disk image @var{output_filename} using format @var{output_fmt}. It can be optionally compressed (@code{-c}
@@ -326,6 +333,14 @@ skipped. This is useful for formats such as @code{rbd} if the target
 volume has already been created with site specific options that cannot
 be supplied through qemu-img.
 
+Out of order writes can be enabled with @code{-W} to improve performance.
+This is only recommended for preallocated devices like host devices or other
+raw block devices. Out of order write does not work in combination with
+creating compressed images.
+
+@var{num_coroutines} specifies how many coroutines work in parallel during
+the convert process (defaults to 8).
+
 @item dd [-f @var{fmt}] [-O @var{output_fmt}] [bs=@var{block_size}] [count=@var{blocks}] [skip=@var{blocks}] if=@var{input} of=@var{output}
 
 Dd copies from @var{input} file to @var{output} file converting it from