diff --git a/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/common/fixture/app/MultiModuleTestProject.java b/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/common/fixture/app/MultiModuleTestProject.java
index 73f36a2..56ce805 100644
--- a/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/common/fixture/app/MultiModuleTestProject.java
+++ b/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/common/fixture/app/MultiModuleTestProject.java
@@ -16,7 +16,7 @@
  */
 public class MultiModuleTestProject implements TestProject {
 
-    private Map<String, ? extends TestProject> subprojects;
+    private Map<String, TestProject> subprojects;
 
     /**
      * Creates a MultiModuleTestProject.
@@ -24,11 +24,25 @@
      * @param subprojects a map with gradle project path as key and the corresponding TestProject as
      *                    value.
      */
-    public MultiModuleTestProject(Map<String, ? extends TestProject> subprojects) {
+    public MultiModuleTestProject(Map<String, TestProject> subprojects) {
         this.subprojects = Maps.newHashMap(subprojects);
     }
 
     /**
+     * Creates a MultiModuleTestProject with multiple subproject of the same TestProject.
+     *
+     * @param baseName Base name of the subproject.  Actual project name will be baseName + index.
+     * @param subproject A TestProject.
+     * @param count Number of subprojects to create.
+     */
+    public MultiModuleTestProject(String baseName, TestProject subproject, int count) {
+        subprojects = Maps.newHashMapWithExpectedSize(count);
+        for (int i = 0; i < count; i++) {
+            subprojects.put(baseName + i, subproject);
+        }
+    }
+
+    /**
      * Return the test project with the given project path.
      */
     public TestProject getSubproject(String subprojectPath) {
diff --git a/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/LargeVariantAndroidComponentTest.groovy b/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/LargeVariantAndroidComponentTest.groovy
index 6ea0d64..91b57b9 100644
--- a/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/LargeVariantAndroidComponentTest.groovy
+++ b/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/LargeVariantAndroidComponentTest.groovy
@@ -57,6 +57,8 @@
                     }
                 }
                 """.stripIndent()).createBuildScript()
+
+        // Execute before performance test to warm up the cache.
         project.execute("help");
     }
 
diff --git a/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/LargeVariantAndroidTest.groovy b/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/LargeVariantAndroidTest.groovy
index 40a1a4c..b617d14 100644
--- a/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/LargeVariantAndroidTest.groovy
+++ b/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/LargeVariantAndroidTest.groovy
@@ -54,6 +54,8 @@
                     }
                 }
                 """.stripIndent()).createBuildScript()
+
+        // Execute before performance test to warm up the cache.
         project.execute("help");
     }
 
diff --git a/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/MultiProjectsAndroidComponentTest.groovy b/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/MultiProjectsAndroidComponentTest.groovy
new file mode 100644
index 0000000..2698c8f
--- /dev/null
+++ b/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/MultiProjectsAndroidComponentTest.groovy
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.build.gradle.integration.performance
+
+import com.android.build.gradle.integration.common.fixture.GradleTestProject
+import com.android.build.gradle.integration.common.fixture.TestProject
+import com.android.build.gradle.integration.common.fixture.app.AndroidTestApp
+import com.android.build.gradle.integration.common.fixture.app.HelloWorldApp
+import com.android.build.gradle.integration.common.fixture.app.MultiModuleTestProject
+import com.android.build.gradle.integration.common.fixture.app.TestSourceFile
+import com.android.build.gradle.integration.common.fixture.app.VariantBuildScriptGenerator
+import org.junit.AfterClass
+import org.junit.ClassRule
+import org.junit.Test
+
+/**
+ * Performance test on gradle experimantal plugin with multiple subprojects and multiple variants.
+ */
+class MultiProjectsAndroidComponentTest {
+    public static AndroidTestApp app = new HelloWorldApp()
+    static {
+        app.addFile(new TestSourceFile("", "build.gradle",
+                new VariantBuildScriptGenerator(
+                buildTypes: VariantBuildScriptGenerator.MEDIUM_NUMBER,
+                productFlavors: VariantBuildScriptGenerator.MEDIUM_NUMBER,
+                """
+                apply plugin: "com.android.model.application"
+
+                model {
+                    android.config {
+                        compileSdkVersion $GradleTestProject.DEFAULT_COMPILE_SDK_VERSION
+                        buildToolsVersion "$GradleTestProject.DEFAULT_BUILD_TOOL_VERSION"
+                    }
+
+                    android.buildTypes {
+                        \${buildTypes}
+                    }
+
+                    android.productFlavors {
+                        \${productFlavors}
+                    }
+                }
+                """.stripIndent()).createBuildScript())
+        )
+    }
+
+    public static TestProject baseProject = new MultiModuleTestProject("app", app, 10)
+
+    @ClassRule
+    public static GradleTestProject project = GradleTestProject.builder()
+            .fromTestApp(baseProject)
+            .forExpermimentalPlugin(true)
+            .create()
+
+    @AfterClass
+    static void cleanUp() {
+        app = null;
+        baseProject = null;
+        project = null;
+    }
+
+    @Test
+    void performanceTest() {
+        project.execute("help")
+    }
+}
diff --git a/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/MultiProjectsAndroidTest.groovy b/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/MultiProjectsAndroidTest.groovy
new file mode 100644
index 0000000..3fabb69
--- /dev/null
+++ b/build-system/integration-test/src/test/groovy/com/android/build/gradle/integration/performance/MultiProjectsAndroidTest.groovy
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.build.gradle.integration.performance
+
+import com.android.build.gradle.integration.common.fixture.GradleTestProject
+import com.android.build.gradle.integration.common.fixture.TestProject
+import com.android.build.gradle.integration.common.fixture.app.AndroidTestApp
+import com.android.build.gradle.integration.common.fixture.app.HelloWorldApp
+import com.android.build.gradle.integration.common.fixture.app.MultiModuleTestProject
+import com.android.build.gradle.integration.common.fixture.app.TestSourceFile
+import com.android.build.gradle.integration.common.fixture.app.VariantBuildScriptGenerator
+import org.junit.AfterClass
+import org.junit.BeforeClass
+import org.junit.ClassRule
+import org.junit.Test
+
+/**
+ * Performance test on gradle plugin with multiple subprojects and multiple variants.
+ */
+class MultiProjectsAndroidTest {
+    public static AndroidTestApp app = new HelloWorldApp()
+    static {
+        app.addFile(new TestSourceFile("", "build.gradle",
+                new VariantBuildScriptGenerator(
+                buildTypes: VariantBuildScriptGenerator.MEDIUM_NUMBER,
+                productFlavors: VariantBuildScriptGenerator.MEDIUM_NUMBER,
+                """
+                apply plugin: "com.android.application"
+
+                android {
+                    compileSdkVersion $GradleTestProject.DEFAULT_COMPILE_SDK_VERSION
+                    buildToolsVersion "$GradleTestProject.DEFAULT_BUILD_TOOL_VERSION"
+
+                    buildTypes {
+                        \${buildTypes}
+                    }
+
+                    productFlavors {
+                        \${productFlavors}
+                    }
+                }
+                """.stripIndent()).createBuildScript())
+        )
+    }
+
+    public static TestProject baseProject = new MultiModuleTestProject("app", app, 10)
+
+    @ClassRule
+    public static GradleTestProject project = GradleTestProject.builder()
+            .fromTestApp(baseProject)
+            .create()
+
+    @AfterClass
+    static void cleanUp() {
+        app = null;
+        baseProject = null;
+        project = null;
+    }
+
+    @Test
+    void performanceTest() {
+        project.execute("help")
+    }
+}