Implement scheduling system with parallel execution support and dummy job systems

2026-08-07 12:14:02 +02:00
parent a0f2713fdc
commit 0132c1326d
14 changed files with 844 additions and 5 deletions
@@ -0,0 +1,54 @@
+using System.Diagnostics;
+
+namespace Nerfed.Runtime.Systems.Synthetic;
+
+internal static class DummyWorkloadRunner
+{
+    public static int Run(TimeSpan duration, DummyWorkloadMode mode, int seed)
+    {
+        return mode switch
+        {
+            DummyWorkloadMode.Sleep => Sleep(duration, seed),
+            DummyWorkloadMode.Compute => Compute(duration, seed),
+            _ => Spin(duration, seed),
+        };
+    }
+
+    private static int Sleep(TimeSpan duration, int seed)
+    {
+        if (duration > TimeSpan.Zero)
+        {
+            Thread.Sleep(duration);
+        }
+
+        return seed;
+    }
+
+    private static int Spin(TimeSpan duration, int seed)
+    {
+        Stopwatch stopwatch = Stopwatch.StartNew();
+        int value = seed;
+        while (stopwatch.Elapsed < duration)
+        {
+            value = unchecked((value * 1664525) + 1013904223);
+            Thread.SpinWait(128);
+        }
+
+        return value;
+    }
+
+    private static int Compute(TimeSpan duration, int seed)
+    {
+        Stopwatch stopwatch = Stopwatch.StartNew();
+        int value = seed;
+        while (stopwatch.Elapsed < duration)
+        {
+            for (int i = 0; i < 2048; i++)
+            {
+                value = unchecked((value << 5) - value + i);
+            }
+        }
+
+        return value;
+    }
+}