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simplebench/bench-backup: add --drop-caches argument

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Add an option to drop caches before each test run. It may probably
improve reliability of results when testing in cached mode.

Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
This commit is contained in:
Vladimir Sementsov-Ogievskiy 2021-03-04 11:10:17 +03:00
parent 8fa4ee1b00
commit 8c8407fe45
2 changed files with 15 additions and 2 deletions
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6
scripts/simplebench/bench-backup.py
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@ -156,7 +156,8 @@ def bench(args):
})
result = simplebench.bench(bench_func, test_envs, test_cases,
count=args.count, initial_run=args.initial_run)
count=args.count, initial_run=args.initial_run,
drop_caches=args.drop_caches)
with open('results.json', 'w') as f:
json.dump(result, f, indent=4)
print(results_to_text(result))
@ -221,4 +222,7 @@ Number of test runs per table cell''')
Do additional initial run per cell which doesn't count in result,
default true''')
p.add_argument('--drop-caches', action='store_true', help='''\
Do "sync; echo 3 > /proc/sys/vm/drop_caches" before each test run''')
bench(p.parse_args())