diff --git a/README.md b/README.md
index 5d0c8db..39df81d 100644
--- a/README.md
+++ b/README.md
@@ -43,8 +43,7 @@ To generate larger data sets for testing:
 
 To run the benchmarks:
 
-    $ sbt "test:runMain edu.luc.etl.osdi.processtree.scala.fakeps.BenchmarkFold"
-    $ sbt "test:runMain edu.luc.etl.osdi.processtree.scala.fakeps.BenchmarkArray"
+    $ sbt "test:runMain edu.luc.etl.osdi.processtree.scala.fakeps.Benchmark"
     $ sbt "test:runMain edu.luc.etl.osdi.processtree.scala.mutable.Benchmark"
     $ sbt "test:runMain edu.luc.etl.osdi.processtree.scala.groupby.Benchmark"
     $ sbt "test:runMain edu.luc.etl.osdi.processtree.scala.fold.Benchmark"
diff --git a/src/test/scala/fakeps/Benchmark.scala b/src/test/scala/fakeps/Benchmark.scala
new file mode 100644
index 0000000..08c42bd
--- /dev/null
+++ b/src/test/scala/fakeps/Benchmark.scala
@@ -0,0 +1,21 @@
+package edu.luc.etl.osdi.processtree.scala
+package fakeps
+
+import org.scalameter.api._
+
+object Benchmark extends Bench.LocalTime {
+
+  val sizes: Gen[Int] = Gen.exponential("processes")(10, 10000, 10)
+
+  def measureMethod(f: Int => Iterator[(Int, Int)], label: String): Unit =
+    measure method label in {
+      using (sizes) in { n =>
+        f(n)
+      }
+    }
+
+  measureMethod(fakePsMutable, "fakePsMutable")
+  measureMethod(fakePsFold, "fakePsFold")
+  measureMethod(fakePsFoldSlow, "fakePsFoldSlow")
+  measureMethod(fakePsArray, "fakePsFoldArray")
+}
diff --git a/src/test/scala/fakeps/benchmarks.scala b/src/test/scala/fakeps/benchmarks.scala
deleted file mode 100644
index 95d5f53..0000000
--- a/src/test/scala/fakeps/benchmarks.scala
+++ /dev/null
@@ -1,23 +0,0 @@
-package edu.luc.etl.osdi.processtree.scala
-package fakeps
-
-import org.scalameter.api._
-
-abstract class Benchmark(val f: Int => Iterator[(Int, Int)], val label: String) extends Bench.LocalTime {
-
-  val sizes: Gen[Int] = Gen.exponential("processes")(10, 100000, 10)
-
-  measure method label in {
-    using (sizes) in { n =>
-      f(n)
-    }
-  }
-}
-
-object BenchmarkMutable extends Benchmark(fakePsMutable, "fakePsMutable")
-
-object BenchmarkFold extends Benchmark(fakePsFold, "fakePsFold")
-
-object BenchmarkFoldSlow extends Benchmark(fakePsFoldSlow, "fakePsFoldSlow")
-
-object BenchmarkArray extends Benchmark(fakePsArray, "fakePsFoldSlow")