Files
DCU_DesktopController/scripts/skip_itr_4k.py
T
cbb e91d53e0fc feat(ecat): 启动后把 ecat_native 提到 RealTime;跳拍优化实验脚本与报告
- esp32_server: Popen 后外部 SetPriorityClass(RT/High),native 自设会被钳成 High
- 入库 skip_* 标定/实验脚本与 REPORT_ecat_skip_opt_20260917
- 前端 WIP:layout/app/polling/boot_ecat/index
- 不含 lab/skip_meter 原始采样与 preview 截图
2026-09-17 02:32:20 +08:00

129 lines
4.4 KiB
Python

#!/usr/bin/env python3
"""查 pdo 线程亲和 + 尝试 ITR 200/400 在 0.25ms 静默下的表现。"""
import json, os, subprocess, time, urllib.request
ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
LAB = os.path.join(ROOT, "lab", "skip_meter")
NIC = "以太网 2"
def ps(cmd, timeout=60):
return subprocess.check_output(["powershell","-NoProfile","-Command",cmd],
text=True, encoding="utf-8", errors="replace",
timeout=timeout).strip()
def post(p, b=None):
d = json.dumps(b or {}).encode()
r = urllib.request.Request("http://127.0.0.1:8090"+p, data=d, headers={"Content-Type":"application/json"})
return json.loads(urllib.request.urlopen(r, timeout=8).read().decode())
def wait_ok(timeout=35):
t0 = time.time()
while time.time()-t0 < timeout:
try:
h = post("/api/native/health")
if h.get("loop")==1 and int(h.get("wkc") or 0)>=3:
return h
except Exception:
pass
time.sleep(0.4)
return None
def set_rt():
p = int(ps("(Get-Process ecat_native).Id"))
ps(f"$p=Get-Process -Id {p}; $p.PriorityClass='RealTime'; $p.PriorityClass")
return p
def quiet_rate(sec=8):
st = post("/api/motor/state")
dbg = post("/api/motor/dbg")
c0, s0 = st.get("cycles") or 0, dbg.get("skip_total") or 0
t0 = time.time()
time.sleep(sec)
st = post("/api/motor/state")
dbg = post("/api/motor/dbg")
dt = time.time()-t0
c1, s1 = st.get("cycles") or 0, dbg.get("skip_total") or 0
return {
"pdo_hz": round((c1-c0)/dt, 1),
"late_per_s": round((s1-s0)/dt, 2),
"cyc_us": st.get("cyc_us"),
"period": st.get("period_ms"),
}
def bus_restart_period(ms):
try:
post("/api/motor/stop")
except Exception:
pass
time.sleep(0.15)
post("/api/motor/period", {"period_ms": ms})
time.sleep(0.15)
post("/api/motor/start")
def nic_set(kw, val):
out, err = "", ""
r = subprocess.run(["powershell","-NoProfile","-Command",
f"Set-NetAdapterAdvancedProperty -Name '{NIC}' -RegistryKeyword '{kw}' -RegistryValue '{val}' -NoRestart"],
capture_output=True, text=True, encoding="utf-8", errors="replace")
return r.stdout.strip(), r.stderr.strip()
# affinity of ecat threads via .NET is limited; dump processor affinity mask
print("=== process affinity ===")
print(ps(r'''
$p = Get-Process ecat_native
"PID $($p.Id) Priority=$($p.PriorityClass)"
# ProcessorAffinity is a bitmask
"Affinity=$($p.ProcessorAffinity)"
'''))
print("=== I210 current ITR/moderation ===")
print(ps(r'''
Get-NetAdapterAdvancedProperty -Name '以太网 2' |
Where-Object { $_.RegistryKeyword -in 'ITR','*InterruptModeration','*TransmitBuffers' } |
Select-Object RegistryKeyword,DisplayValue | ConvertTo-Json -Compress
'''))
results = []
# try ITR values at 0.25ms quiet
for itr in ("200", "400", "950", "65535"):
print(f"\n===== ITR={itr} @0.25ms =====")
o, e = nic_set("*InterruptModeration", "1")
o2, e2 = nic_set("ITR", itr)
print("set", o2 or o, e2 or e)
# restart nic only if needed - ITR may need restart
ps(f"Restart-NetAdapter -Name '{NIC}' -Confirm:$false")
time.sleep(2)
h = wait_ok(30)
print("health", bool(h))
if not h:
try:
post("/api/op/start"); post("/api/motor/start")
h = wait_ok(20)
except Exception as ex:
print(ex)
set_rt()
bus_restart_period(0.25)
time.sleep(3)
set_rt()
r = quiet_rate(8)
print(json.dumps({k:r[k] for k in ("pdo_hz","late_per_s","period")}, ensure_ascii=False))
print("work/send/rx", r["cyc_us"]["work"]["p50"], r["cyc_us"]["send"]["p50"], r["cyc_us"]["rx"]["p50"])
results.append({"itr": itr, **{k:r[k] for k in ("pdo_hz","late_per_s")},
"work_p50": r["cyc_us"]["work"]["p50"], "send_p50": r["cyc_us"]["send"]["p50"],
"rx_p50": r["cyc_us"]["rx"]["p50"]})
print("\nSUMMARY", json.dumps(results, ensure_ascii=False, indent=2))
# restore adaptive
nic_set("ITR", "65535")
ps(f"Restart-NetAdapter -Name '{NIC}' -Confirm:$false")
time.sleep(2)
wait_ok(25)
set_rt()
# leave at 1ms for safety
bus_restart_period(1.0)
time.sleep(1)
print("restored 1ms", post("/api/native/health"))
path = os.path.join(LAB, f"summary_itr_4k_{int(time.time())}.json")
json.dump(results, open(path,"w",encoding="utf-8"), ensure_ascii=False, indent=2)
print("WROTE", path)