Enable ConsoleMandel test (#116157)

Enable ConsoleMandel test, make it run faster.

Author: kunalspathak

src/tests/JIT/Performance/CodeQuality/SIMD/ConsoleMandel/ConsoleMandel.cs

@@ -67,7 +67,8 @@ private static void PrintUsage()
         [Fact]
         public static int TestEntryPoint()
         {
-            return Test(Array.Empty<string>());
+            Bench(0, -1);
+            return Pass;
         }
 
         [MethodImpl(MethodImplOptions.NoInlining)]
@@ -148,7 +149,7 @@ public static void Bench(int iters, int which)
             float ymin = YC - Range;
             float ymax = YC + Range;
             float step = Range / 1000f; // This will render one million pixels
-            float warm = Range / 100f; // To warm up, just render 10000 pixels :-)
+            float warm = Range / 50f; // To warm up, just render 2500 pixels :-)
             Algorithms.FractalRenderer.Render[] renderers = new Algorithms.FractalRenderer.Render[24];
             // Warm up each renderer
             if (!s_silent)
@@ -179,6 +180,10 @@ public static void Bench(int iters, int which)
             {
                 Console.WriteLine(" Run Type                       :      Min      Max    Average    Std-Dev");
             }
+
+            // iters == 0: just do warmup runs
+            if (iters == 0) return;
+
             for (int i = firstRenderer; i <= lastRenderer; i++)
             {
                 long totalTime = 0;