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_tests/bench_keepalive.py

@@ -0,0 +1,115 @@
+# -*- coding: utf-8 -*-
+"""真机测试：被控端复用连接之后，长轮询的成功率提升了多少？
+
+对照：
+    改之前（每次新建连接）：约 70%
+    改之后（复用连接）    ：期望接近 100%
+
+做法：
+    起一个真的 RelayLink，连公网中转 https://relay.xxmxxs.top，
+    连续轮询 60 次，统计成功/失败。
+"""
+from __future__ import annotations
+
+import sys
+import tempfile
+import threading
+import time
+from pathlib import Path
+
+ROOT = Path(__file__).resolve().parent.parent
+sys.path.insert(0, str(ROOT / "windows"))
+
+from lanremote.config import Store          # noqa: E402
+from lanremote.relay import RelayLink       # noqa: E402
+
+RELAY = "https://relay.xxmxxs.top"
+ROUNDS = 60
+
+
+def main() -> int:
+    work = Path(tempfile.mkdtemp(prefix="keepalive_"))
+    store = Store(work)
+    store.set("relay_url", RELAY)
+    store.set("pairing_code", "%06d" % __import__("random").randint(1, 999999))
+    store.set("device_name", "keepalive-probe")
+
+    logs = []
+    link = RelayLink(store, log=logs.append)
+
+    # 先把地址和候选解析好
+    link.candidates = [RELAY]
+    link.url = RELAY
+    # deviceId 走正常的生成逻辑（带机器名 + 随机后缀）
+    link.device_id = link._ensure_device_id()
+
+    print(f"  目标中转: {RELAY}")
+    print("  先登记…")
+
+    ok_register = False
+    for attempt in range(3):
+        try:
+            link._register()
+            ok_register = True
+            break
+        except Exception as exc:                          # noqa: BLE001
+            print(f"    第 {attempt + 1} 次登记失败: {type(exc).__name__}: {exc}")
+            time.sleep(1.5)
+    if not ok_register:
+        print("  登记不上，测试没法继续")
+        return 1
+    print(f"  登记成功，配对码 {link.code}")
+
+    print()
+    print(f"  连续轮询 {ROUNDS} 次（复用同一条连接）…")
+    good = 0
+    bad = 0
+    times = []
+    first_failure = None
+    for index in range(ROUNDS):
+        started = time.time()
+        try:
+            link._poll_once()
+            good += 1
+            times.append((time.time() - started) * 1000)
+        except Exception as exc:                          # noqa: BLE001
+            bad += 1
+            if first_failure is None:
+                first_failure = f"{type(exc).__name__}: {exc}"
+            # 失败也让它重试（真实循环就是这么做的）
+        if (index + 1) % 20 == 0:
+            print(f"    已跑 {index + 1} 次：成功 {good}，失败 {bad}")
+
+    total = good + bad
+    pct = good * 100 // total if total else 0
+    print()
+    print("=" * 58)
+    print(f"  成功 {good} / {total} = {pct}%")
+    if times:
+        times.sort()
+        print(f"  单次耗时 中位 {times[len(times) // 2]:.0f}ms  "
+              f"最快 {times[0]:.0f}ms  最慢 {times[-1]:.0f}ms")
+    if first_failure:
+        print(f"  首次失败: {first_failure}")
+    print()
+    print("  对照（实测）：")
+    print("    每次新建连接（改之前）: 约 70%")
+    print(f"    复用连接（改之后）    : {pct}%")
+    print()
+    if pct >= 95:
+        print("  ✓ 达到目标（≥95%）")
+    elif pct >= 85:
+        print("  ~ 明显改善，但还没到 95%")
+    else:
+        print("  ✗ 没改善，得换个思路")
+
+    # 清理
+    try:
+        link.close()
+    except Exception:                                     # noqa: BLE001
+        pass
+    return 0
+
+
+if __name__ == "__main__":
+    sys.exit(main())