chore: init qmt_bridge repo (HTTP+WS bridge, MCP endpoint, docs, references)

reference/xtquant_big_convert/bench_zmq_spike.py

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+# coding: utf-8
+"""Measure ZMQ GIL-spike rate at different request rates.
+
+Sends N get_full_tick requests at a fixed interval, records per-call
+latency, reports how many exceed thresholds (50/200/500/1000ms).
+"""
+import sys
+import time
+
+sys.path.insert(0, r"D:\gjzqqmt\xtquant_big_convert\src")
+sys.path.insert(0, r"D:\国金证券QMT交易端_lemo\python")
+
+import bigqmt_signal_trader.xtquant_compat as compat
+
+compat.configure()
+client = compat.get_default_client()
+print("account:", client.account_id, "| transport:", client.transport_name)
+print("=" * 60)
+
+N = 40
+INTERVAL_MS = 50  # 请求间隔 50ms = 20 QPS
+
+latencies = []
+for i in range(N):
+    t0 = time.time()
+    try:
+        client.call("get_full_tick", {"codes": ["000001.SZ"]})
+        ms = (time.time() - t0) * 1000
+        latencies.append(ms)
+    except Exception as e:
+        ms = (time.time() - t0) * 1000
+        latencies.append(ms)
+        print("  [%2d] FAIL %.0fms %s" % (i, ms, str(e)[:40]))
+    # 控制频率
+    elapsed = (time.time() - t0)
+    sleep = max(0, INTERVAL_MS / 1000.0 - elapsed)
+    if sleep > 0:
+        time.sleep(sleep)
+
+latencies.sort()
+n = len(latencies)
+print("\n=== %d requests @ %dms interval (%.0f QPS) ===" % (n, INTERVAL_MS, 1000.0/INTERVAL_MS))
+print("min=%.1f  p50=%.1f  p90=%.1f  p99=%.1f  max=%.1f" % (
+    latencies[0], latencies[n//2], latencies[int(n*0.9)], latencies[int(n*0.99)], latencies[-1]))
+
+# 尖峰分布
+thresholds = [10, 50, 100, 200, 500, 1000]
+print("\n=== 延迟分布 ===")
+for t in thresholds:
+    cnt = sum(1 for l in latencies if l > t)
+    print("  >%5dms : %2d / %d  (%.0f%%)" % (t, cnt, n, 100.0*cnt/n))