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d63a1ba | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 | """Save a small speed summary from an MLX LoRA training log."""
from __future__ import annotations
import argparse
import json
import re
from pathlib import Path
ROOT = Path(__file__).resolve().parents[1]
REPORT_RE = re.compile(r"Iter\s+(\d+):\s+Train loss.*?It/sec\s+([0-9.]+)", re.IGNORECASE)
def main() -> None:
parser = argparse.ArgumentParser()
parser.add_argument("--log-path", default="artifacts/mlx_qwen3_4b/logs/mlx_lora_benchmark.log")
parser.add_argument("--output-path", default="artifacts/mlx_qwen3_4b/metrics/speed_mlx.json")
args = parser.parse_args()
log_path = (ROOT / args.log_path).resolve()
output_path = (ROOT / args.output_path).resolve()
text = log_path.read_text(encoding="utf-8") if log_path.exists() else ""
records = []
for step, it_per_sec in REPORT_RE.findall(text):
itps = float(it_per_sec)
records.append(
{
"step": int(step),
"iterations_per_second": itps,
"seconds_per_step_estimate": 1.0 / itps if itps > 0 else None,
}
)
payload = {
"method": "mlx_lm_lora",
"source_log": str(log_path),
"records": records,
"latest_seconds_per_step": records[-1]["seconds_per_step_estimate"] if records else None,
}
output_path.parent.mkdir(parents=True, exist_ok=True)
output_path.write_text(json.dumps(payload, indent=2, sort_keys=True) + "\n", encoding="utf-8")
print(json.dumps(payload, indent=2, sort_keys=True))
if __name__ == "__main__":
main()
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