| """Benchmark for Issue #109 |
| """ |
|
|
| import time |
|
|
| import diskcache as dc |
|
|
|
|
| def main(): |
| import argparse |
|
|
| parser = argparse.ArgumentParser() |
| parser.add_argument('--cache-dir', default='/tmp/test') |
| parser.add_argument('--iterations', type=int, default=100) |
| parser.add_argument('--sleep', type=float, default=0.1) |
| parser.add_argument('--size', type=int, default=25) |
| args = parser.parse_args() |
|
|
| data = dc.FanoutCache(args.cache_dir) |
| delays = [] |
| values = {str(num): num for num in range(args.size)} |
| iterations = args.iterations |
|
|
| for i in range(args.iterations): |
| print(f'Iteration {i + 1}/{iterations}', end='\r') |
| time.sleep(args.sleep) |
| for key, value in values.items(): |
| start = time.monotonic() |
| data[key] = value |
| stop = time.monotonic() |
| diff = stop - start |
| delays.append(diff) |
|
|
| |
| del delays[: (len(values) * 2)] |
|
|
| |
| delays = sorted(delay * 1e6 for delay in delays) |
|
|
| |
| print() |
| print(f'Total #: {len(delays)}') |
| print(f'Min delay (us): {delays[0]:>8.3f}') |
| print(f'50th %ile (us): {delays[int(len(delays) * 0.50)]:>8.3f}') |
| print(f'90th %ile (us): {delays[int(len(delays) * 0.90)]:>8.3f}') |
| print(f'99th %ile (us): {delays[int(len(delays) * 0.99)]:>8.3f}') |
| print(f'Max delay (us): {delays[-1]:>8.3f}') |
|
|
|
|
| if __name__ == '__main__': |
| main() |
|
|
