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[PATCH v3 3/3] scripts/simplebench: add unaligned data case to bench_wri
From: |
Andrey Shinkevich |
Subject: |
[PATCH v3 3/3] scripts/simplebench: add unaligned data case to bench_write_req |
Date: |
Sun, 12 Jul 2020 20:17:14 +0300 |
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.shinkevich@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