Add a test case with writhing data unaligned to the image clusters. This case does not involve the COW optimization introduced with the patch "qcow2: skip writing zero buffers to empty COW areas" (git commit ID: c8bb23cbdbe32f5).
Signed-off-by: Andrey Shinkevich <andrey.shinkev...@virtuozzo.com> --- scripts/simplebench/bench_write_req.py | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/scripts/simplebench/bench_write_req.py b/scripts/simplebench/bench_write_req.py index ceb0ab6..9f3a520 100755 --- a/scripts/simplebench/bench_write_req.py +++ b/scripts/simplebench/bench_write_req.py @@ -58,7 +58,7 @@ def bench_write_req(qemu_img, image_name, block_size, block_offset, requests, image_name -- QCOW2 image name to create block_size -- size of a block to write to clusters block_offset -- offset of the block in clusters - requests -- number of write requests per cluster + requests -- number of write requests per cluster, customize if zero empty_image -- if not True, fills image with random data Returns {'seconds': int} on success and {'error': str} on failure. @@ -176,6 +176,13 @@ if __name__ == '__main__': 'requests': 2, 'empty_image': True }, + { + 'id': '<unaligned>', + 'block_size': 104857600, + 'block_offset': 524288, + 'requests': 0, + 'empty_image': False + }, ] # Test-envs are "columns" in benchmark resulting table, 'id is a caption -- 1.8.3.1