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2026-04-29 06:48:41 +00:00 · 2026-04-04 15:30:06 +03:00
parent 5f73cf7af7
commit 5b0fba89a4
14 changed files with 853 additions and 0 deletions
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+// ============================================================
+// Test 1: Node Fan-Out — CLIENT NODE
+// Connects to the server, attaches to all sensor resources,
+// and counts received property-change notifications.
+//
+// Run N instances of this client simultaneously to simulate
+// N subscriber nodes. The server's fan-out load grows with N.
+//
+// Usage: dotnet run -- --host 127.0.0.1 --port 10900 --resources 100 --duration 30
+// ============================================================
+
+using Esiur.Resource;
+using System.Diagnostics;
+
+var host          = GetArg(args, "--host",      "127.0.0.1");
+var port          = int.Parse(GetArg(args, "--port",      "10900"));
+var resourceCount = int.Parse(GetArg(args, "--resources", "100"));
+var durationSec   = int.Parse(GetArg(args, "--duration",  "30"));
+var clientId      = GetArg(args, "--id", Environment.MachineName);
+
+Console.WriteLine($"[Client {clientId}] Connecting to {host}:{port}, resources={resourceCount}, duration={durationSec}s");
+
+// Counters
+long   totalReceived    = 0;
+long   lateCount        = 0;     // notifications arriving > 500ms after the previous
+double sumLatencyMs     = 0;
+long   latencySamples   = 0;
+
+var latencyLock = new object();
+
+// --- Attach all resources -------------------------------------------
+var proxies = new dynamic[resourceCount];
+var sw = Stopwatch.StartNew();
+
+try
+{
+    for (int i = 0; i < resourceCount; i++)
+    {
+        proxies[i] = await Warehouse.Get<IResource>($"iip://{host}:{port}/sys/sensor_{i}");
+
+        // Subscribe to property change notifications via the Esiur event model
+        double lastValue = (double)proxies[i].Value;
+        long   lastTick  = Stopwatch.GetTimestamp();
+        int    capturedI = i;
+
+        proxies[i].OnPropertyModified += (string propName, object oldVal, object newVal) =>
+        {
+            if (propName != "Value") return;
+
+            long nowTick = Stopwatch.GetTimestamp();
+            double elapsedMs = (nowTick - lastTick) * 1000.0 / Stopwatch.Frequency;
+            lastTick = nowTick;
+
+            Interlocked.Increment(ref totalReceived);
+
+            lock (latencyLock)
+            {
+                sumLatencyMs += elapsedMs;
+                latencySamples++;
+                if (elapsedMs > 500) lateCount++;
+            }
+        };
+    }
+
+    double attachTime = sw.Elapsed.TotalSeconds;
+    Console.WriteLine($"[Client {clientId}] All {resourceCount} resources attached in {attachTime:F2}s");
+}
+catch (Exception ex)
+{
+    Console.WriteLine($"[Client {clientId}] Attach error: {ex.Message}");
+    return;
+}
+
+// --- Measurement window ---------------------------------------------
+sw.Restart();
+long lastReceived = 0;
+var results = new List<(double TimeSec, long ReceivedDelta, double AvgIntervalMs)>();
+
+while (sw.Elapsed.TotalSeconds < durationSec)
+{
+    await Task.Delay(5000);
+
+    long delta = totalReceived - lastReceived;
+    lastReceived = totalReceived;
+
+    double avgInterval;
+    lock (latencyLock)
+    {
+        avgInterval = latencySamples > 0 ? sumLatencyMs / latencySamples : 0;
+        sumLatencyMs = 0;
+        latencySamples = 0;
+    }
+
+    double t = sw.Elapsed.TotalSeconds;
+    results.Add((t, delta, avgInterval));
+    Console.WriteLine($"[Client {clientId}] t={t:F0}s  recv/5s={delta}  rate={delta/5.0:F1}/s  avg_interval={avgInterval:F1}ms  late={lateCount}");
+}
+
+// --- CSV output -----------------------------------------------------
+string csv = $"time_s,received_per_5s,rate_per_s,avg_interval_ms\n" +
+             string.Join("\n", results.Select(r =>
+                $"{r.TimeSec:F1},{r.ReceivedDelta},{r.ReceivedDelta/5.0:F1},{r.AvgIntervalMs:F2}"));
+
+string outFile = $"client_{clientId}_results.csv";
+await File.WriteAllTextAsync(outFile, csv);
+Console.WriteLine($"[Client {clientId}] Results written to {outFile}");
+Console.WriteLine($"[Client {clientId}] Total received={totalReceived}  late(>500ms)={lateCount}");
+
+
+static string GetArg(string[] args, string key, string def)
+{
+    int i = Array.IndexOf(args, key);
+    return (i >= 0 && i + 1 < args.Length) ? args[i + 1] : def;
+}