diff options
| author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2018-06-20 17:48:37 +0300 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2018-07-05 10:29:19 +0200 |
| commit | ceb029cd6feccf9f7607833b71dd609d149421a1 (patch) | |
| tree | ff8c0d61b29e1267c912ae2d2a7a8abedf980f13 /block/qcow2.h | |
| parent | 2714f13d69adf73638842729ccfb3bdd6d5ee98f (diff) | |
qcow2: add compress threads
Do data compression in separate threads. This significantly improve
performance for qemu-img convert with -W (allow async writes) and -c
(compressed) options.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'block/qcow2.h')
| -rw-r--r-- | block/qcow2.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block/qcow2.h b/block/qcow2.h index 1c9c0d3631..d6aca687d6 100644 --- a/block/qcow2.h +++ b/block/qcow2.h @@ -326,6 +326,9 @@ typedef struct BDRVQcow2State { * override) */ char *image_backing_file; char *image_backing_format; + + CoQueue compress_wait_queue; + int nb_compress_threads; } BDRVQcow2State; typedef struct Qcow2COWRegion { |