diff --git a/build.gradle b/build.gradle
index 236bf3f..baf6560 100644
--- a/build.gradle
+++ b/build.gradle
@@ -7,6 +7,7 @@ buildscript {
     jcenter()
   }
   dependencies {
+    // run with gradle --no-daemon clean jmh
     classpath "me.champeau.gradle:jmh-gradle-plugin:0.5.0-rc-2"
   }
 }
diff --git a/primitiveCollections/src/jmh/java/org/lucares/collections/BenchmarkUnionIntersection.java b/primitiveCollections/src/jmh/java/org/lucares/collections/BenchmarkUnionIntersection.java
index 3710dec..1482cfa 100644
--- a/primitiveCollections/src/jmh/java/org/lucares/collections/BenchmarkUnionIntersection.java
+++ b/primitiveCollections/src/jmh/java/org/lucares/collections/BenchmarkUnionIntersection.java
@@ -8,6 +8,7 @@ import org.openjdk.jmh.annotations.BenchmarkMode;
 import org.openjdk.jmh.annotations.Fork;
 import org.openjdk.jmh.annotations.Measurement;
 import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.Param;
 import org.openjdk.jmh.annotations.Scope;
 import org.openjdk.jmh.annotations.Setup;
 import org.openjdk.jmh.annotations.State;
@@ -21,6 +22,9 @@ import org.openjdk.jmh.annotations.Warmup;
 @Fork(1)
 public class BenchmarkUnionIntersection {
 
+	@Param({ "10000", "20000" })
+	private int values;
+
 	private IntList aSorted = null;
 	private IntList bSorted = null;
 	private IntList cUnsorted = null;
@@ -29,7 +33,6 @@ public class BenchmarkUnionIntersection {
 	@Setup
 	public void setup() throws Exception {
 
-		final int values = 10_000;
 		aSorted = IntList.of();
 		IntStream.range(0, values).forEachOrdered(aSorted::add);
 		aSorted.sort();
@@ -67,4 +70,16 @@ public class BenchmarkUnionIntersection {
 
 		IntList.intersection(aSorted, bSorted);
 	}
+
+	@Benchmark
+	public void testUnionUnsortedLists() throws Exception {
+
+		IntList.union(cUnsorted, dUnsorted);
+	}
+
+	@Benchmark
+	public void testIntersectionUnsortedLists() throws Exception {
+
+		IntList.intersection(cUnsorted, dUnsorted);
+	}
 }
diff --git a/primitiveCollections/src/jmh/java/org/lucares/collections/BenchmarkUniq.java b/primitiveCollections/src/jmh/java/org/lucares/collections/BenchmarkUniq.java
new file mode 100644
index 0000000..3a86049
--- /dev/null
+++ b/primitiveCollections/src/jmh/java/org/lucares/collections/BenchmarkUniq.java
@@ -0,0 +1,50 @@
+package org.lucares.collections;
+
+import java.util.concurrent.TimeUnit;
+import java.util.stream.IntStream;
+
+import org.openjdk.jmh.annotations.Benchmark;
+import org.openjdk.jmh.annotations.BenchmarkMode;
+import org.openjdk.jmh.annotations.Fork;
+import org.openjdk.jmh.annotations.Measurement;
+import org.openjdk.jmh.annotations.Mode;
+import org.openjdk.jmh.annotations.Scope;
+import org.openjdk.jmh.annotations.Setup;
+import org.openjdk.jmh.annotations.State;
+import org.openjdk.jmh.annotations.TearDown;
+import org.openjdk.jmh.annotations.Warmup;
+
+@State(Scope.Benchmark)
+@BenchmarkMode(Mode.Throughput)
+@Warmup(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
+@Measurement(iterations = 5, time = 1, timeUnit = TimeUnit.SECONDS)
+@Fork(1)
+public class BenchmarkUniq {
+	private IntList base = null;
+	private IntList remove = null;
+
+	@Setup
+	public void setup() throws Exception {
+
+		final int values = 10_000;
+		base = IntList.of();
+		IntStream.range(0, values).forEachOrdered(i -> base.add(i));
+		base.sort();
+
+		remove = IntList.of();
+		IntStream.range(0, 50).forEachOrdered(i -> remove.add(i));
+		remove.sort();
+	}
+
+	@TearDown
+	public void tearDown() {
+		base = null;
+		remove = null;
+	}
+
+	@Benchmark
+	public void testUniq() throws Exception {
+
+		// IntList.union(aSorted, bSorted);
+	}
+}