Files
fz-lang/scripts/benchmark.py
T

54 lines
1.9 KiB
Python

#!/usr/bin/env python3
"""Run an FZL VM benchmark and report wall-clock timing statistics."""
import argparse
import statistics
import subprocess
import sys
import time
def main():
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument("--runs", type=int, default=7, help="measured runs")
parser.add_argument("--warmup", type=int, default=2, help="warm-up runs")
parser.add_argument("--max-iter", type=int, default=2_000_000)
parser.add_argument("--vm", required=True, help="path to the fz executable")
parser.add_argument("--program", required=True, help="compiled .fzb program")
args = parser.parse_args()
if args.runs < 1 or args.warmup < 0 or args.max_iter < 1:
parser.error("runs/max-iter must be positive and warmup must be non-negative")
command = [args.vm, "--max-iter", str(args.max_iter), args.program]
for _ in range(args.warmup):
result = subprocess.run(command, capture_output=True, text=True)
if result.returncode != 0:
sys.stderr.write(result.stdout)
sys.stderr.write(result.stderr)
raise SystemExit(result.returncode)
measurements = []
for _ in range(args.runs):
start = time.perf_counter()
result = subprocess.run(
command, capture_output=True, text=True
)
elapsed = time.perf_counter() - start
if result.returncode != 0:
sys.stderr.write(result.stdout)
sys.stderr.write(result.stderr)
raise SystemExit(result.returncode)
measurements.append(elapsed)
print(f"Runs: {args.runs} (warm-up: {args.warmup})")
print(f"Median: {statistics.median(measurements):.6f} s")
print(f"Mean: {statistics.mean(measurements):.6f} s")
print(f"Min: {min(measurements):.6f} s")
print(f"Max: {max(measurements):.6f} s")
if __name__ == "__main__":
main()