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-rwxr-xr-xscripts/simplebench/bench-backup.py33
-rwxr-xr-xscripts/simplebench/bench_block_job.py10
2 files changed, 33 insertions, 10 deletions
diff --git a/scripts/simplebench/bench-backup.py b/scripts/simplebench/bench-backup.py
index 72eae85bb1..fbc85f266f 100755
--- a/scripts/simplebench/bench-backup.py
+++ b/scripts/simplebench/bench-backup.py
@@ -65,13 +65,26 @@ def bench(args):
test_cases.append({'id': t, 'source': source, 'target': nbd_drv})
continue
- fname = dirs[dst] + '/test-target'
- if args.compressed:
- fname += '.qcow2'
- target = drv_file(fname)
- if args.compressed:
- target = drv_qcow2(target)
- test_cases.append({'id': t, 'source': source, 'target': target})
+ if args.target_cache == 'both':
+ target_caches = ['direct', 'cached']
+ else:
+ target_caches = [args.target_cache]
+
+ for c in target_caches:
+ o_direct = c == 'direct'
+ fname = dirs[dst] + '/test-target'
+ if args.compressed:
+ fname += '.qcow2'
+ target = drv_file(fname, o_direct=o_direct)
+ if args.compressed:
+ target = drv_qcow2(target)
+
+ test_id = t
+ if args.target_cache == 'both':
+ test_id += f'({c})'
+
+ test_cases.append({'id': test_id, 'source': source,
+ 'target': target})
binaries = [] # list of (<label>, <path>, [<options>])
for i, q in enumerate(args.env):
@@ -186,5 +199,11 @@ Tests, in form source-dir-label:target-dir-label''',
Use compressed backup. It automatically means
automatically creating qcow2 target with
lazy_refcounts for each test run''', action='store_true')
+ p.add_argument('--target-cache', help='''\
+Setup cache for target nodes. Options:
+ direct: default, use O_DIRECT and aio=native
+ cached: use system cache (Qemu default) and aio=threads (Qemu default)
+ both: generate two test cases for each src:dst pair''',
+ default='direct', choices=('direct', 'cached', 'both'))
bench(p.parse_args())
diff --git a/scripts/simplebench/bench_block_job.py b/scripts/simplebench/bench_block_job.py
index 08f86ed9c1..8f8385ccce 100755
--- a/scripts/simplebench/bench_block_job.py
+++ b/scripts/simplebench/bench_block_job.py
@@ -115,9 +115,13 @@ def bench_block_copy(qemu_binary, cmd, cmd_options, source, target):
'-blockdev', json.dumps(target)])
-def drv_file(filename):
- return {'driver': 'file', 'filename': filename,
- 'cache': {'direct': True}, 'aio': 'native'}
+def drv_file(filename, o_direct=True):
+ node = {'driver': 'file', 'filename': filename}
+ if o_direct:
+ node['cache'] = {'direct': True}
+ node['aio'] = 'native'
+
+ return node
def drv_nbd(host, port):