Updating caliper to current SVN as of 20091215
A test
A test/com
A test/com/google
A test/com/google/caliper
A test/com/google/caliper/AllTests.java
A test/com/google/caliper/examples
A test/com/google/caliper/examples/ArraySortBenchmark.java
A test/com/google/caliper/examples/BoxedDoubleToStringBenchmark.java
A test/com/google/caliper/examples/ListIterationBenchmark.java
A test/com/google/caliper/examples/IntModBenchmark.java
A test/com/google/caliper/examples/CharacterBenchmark.java
A test/com/google/caliper/examples/PrimitiveDoubleToStringBenchmark.java
A test/com/google/caliper/examples/StringBuilderBenchmark.java
A test/com/google/caliper/examples/EnumSetContainsBenchmark.java
A test/com/google/caliper/examples/ExpensiveObjectsBenchmark.java
A test/com/google/caliper/examples/FormatterBenchmark.java
A lib
A lib/junit.jar
A lib/google-collect-1.0-rc4.jar
A src
A src/com
A src/com/google
A src/com/google/caliper
A src/com/google/caliper/Caliper.java
A src/com/google/caliper/Param.java
A src/com/google/caliper/Parameter.java
A src/com/google/caliper/ExecutionException.java
A src/com/google/caliper/Run.java
A src/com/google/caliper/SimpleBenchmark.java
A src/com/google/caliper/ConfigurationException.java
A src/com/google/caliper/Runner.java
A src/com/google/caliper/TypeConverter.java
A src/com/google/caliper/TimedRunnable.java
A src/com/google/caliper/Benchmark.java
A src/com/google/caliper/ConsoleReport.java
A src/com/google/caliper/Result.java
A caliper.ipr
A core.iml
A COPYING
A build.xml
Checked out revision 23.
diff --git a/test/com/google/caliper/examples/PrimitiveDoubleToStringBenchmark.java b/test/com/google/caliper/examples/PrimitiveDoubleToStringBenchmark.java
new file mode 100644
index 0000000..592acdc
--- /dev/null
+++ b/test/com/google/caliper/examples/PrimitiveDoubleToStringBenchmark.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2009 Google Inc.
+ *
+ * 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.google.caliper.examples;
+
+import com.google.caliper.SimpleBenchmark;
+import com.google.caliper.Param;
+import com.google.caliper.Runner;
+
+import java.util.Arrays;
+import java.util.Collection;
+
+/**
+ * Measures the various ways the JDK converts primitive doubles to Strings.
+ */
+public class PrimitiveDoubleToStringBenchmark extends SimpleBenchmark {
+
+ @Param private double d;
+
+ private static final Collection<Double> dValues = Arrays.asList(
+ Math.PI,
+ -0.0d,
+ Double.NEGATIVE_INFINITY,
+ Double.NaN
+ );
+
+ public int timeStringFormat(int reps) {
+ double value = d;
+ int dummy = 0;
+ for (int i = 0; i < reps; i++) {
+ dummy += String.format("%f", value).length();
+ }
+ return dummy;
+ }
+
+ public int timeToString(int reps) {
+ double value = d;
+ int dummy = 0;
+ for (int i = 0; i < reps; i++) {
+ dummy += ((Double) value).toString().length();
+ }
+ return dummy;
+ }
+
+ public int timeStringValueOf(int reps) {
+ double value = d;
+ int dummy = 0;
+ for (int i = 0; i < reps; i++) {
+ dummy += String.valueOf(value).length();
+ }
+ return dummy;
+ }
+
+ public int timeQuoteTrick(int reps) {
+ double value = d;
+ int dummy = 0;
+ for (int i = 0; i < reps; i++) {
+ dummy = ("" + value).length();
+ }
+ return dummy;
+ }
+
+ // TODO: remove this from all examples when IDE plugins are ready
+ public static void main(String[] args) throws Exception {
+ Runner.main(PrimitiveDoubleToStringBenchmark.class, args);
+ }
+}
\ No newline at end of file