Added benchmark of Catenable

Author: mpilquist

benchmark/src/main/scala/fs2/benchmark/CatenableBenchmark.scala

@@ -0,0 +1,31 @@
+package fs2
+package benchmark
+
+import org.openjdk.jmh.annotations.{Benchmark, State, Scope}
+
+import fs2.util.Catenable
+
+@State(Scope.Thread)
+class CatenableBenchmark extends BenchmarkUtils {
+
+  val smallCatenable = Catenable(1, 2, 3, 4, 5)
+  val smallVector = Vector(1, 2, 3, 4, 5)
+
+  val largeCatenable = Catenable.fromSeq(0 to 1000000)
+  val largeVector = (0 to 1000000).toVector
+
+  @Benchmark def mapSmallCatenable = smallCatenable.map(_ + 1)
+  @Benchmark def mapSmallVector = smallVector.map(_ + 1)
+  @Benchmark def mapLargeCatenable = largeCatenable.map(_ + 1)
+  @Benchmark def mapLargeVector = largeVector.map(_ + 1)
+
+  @Benchmark def consSmallCatenable = 0 :: smallCatenable
+  @Benchmark def consSmallVector = 0 +: smallVector
+  @Benchmark def consLargeCatenable = 0 :: largeCatenable
+  @Benchmark def consLargeVector = 0 +: largeVector
+
+  @Benchmark def createTinyCatenable = Catenable(1)
+  @Benchmark def createTinyVector = Vector(1)
+  @Benchmark def createSmallCatenable = Catenable(1, 2, 3, 4, 5)
+  @Benchmark def createSmallVector = Vector(1, 2, 3, 4, 5)
+}