45 lines
1.8 KiB
Python
45 lines
1.8 KiB
Python
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#!/usr/bin/env python3
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import json, os, subprocess, sys, time
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ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
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LAB = os.path.join(ROOT, "lab", "skip_meter")
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def set_prio(level="RealTime"):
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p = int(subprocess.check_output(["powershell","-NoProfile","-Command","(Get-Process ecat_native).Id"], text=True).strip())
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subprocess.check_output(["powershell","-NoProfile","-Command",
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f"$p=Get-Process -Id {p}; $p.PriorityClass='{level}'; $p.PriorityClass"], text=True)
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return p
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def meter(tag, secs=15):
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subprocess.run([sys.executable, os.path.join(ROOT,"scripts","skip_rate_meter.py"),
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"--tag", tag, "--secs", str(secs)],
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capture_output=True, text=True, encoding="utf-8", errors="replace")
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files = sorted(f for f in os.listdir(LAB) if f.startswith(tag+"_") and f.endswith(".json"))
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d = json.load(open(os.path.join(LAB, files[-1]), encoding="utf-8"))
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return {
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"tag": tag,
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"late_per_s": d["late_per_s"], "skip_per_s": d["skip_per_s"],
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"achieved_hz": d["achieved_hz"], "n_late": d["n_late"],
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"work_p50": d["window_cyc_us"]["work"]["p50"],
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"rx_p50": d["window_cyc_us"]["rx"]["p50"],
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"send_p50": d["window_cyc_us"]["send"]["p50"],
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"work_p90": d["window_cyc_us"]["work"]["p90"],
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}
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def main():
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set_prio("RealTime")
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rows = []
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for i in range(1, 4):
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print(f"round {i} settle...")
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time.sleep(4)
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r = meter(f"multirt_{i}", 15)
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print(r)
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rows.append(r)
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lates = [x["late_per_s"] for x in rows]
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print("mean late", sum(lates)/len(lates), "min", min(lates), "max", max(lates))
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path = os.path.join(LAB, f"summary_multirt_{int(time.time())}.json")
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json.dump(rows, open(path,"w",encoding="utf-8"), ensure_ascii=False, indent=2)
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print("WROTE", path)
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if __name__ == "__main__":
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main()
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