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Diffstat (limited to 'test/com/google/caliper/examples/FormatterBenchmark.java')
-rw-r--r-- | test/com/google/caliper/examples/FormatterBenchmark.java | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/test/com/google/caliper/examples/FormatterBenchmark.java b/test/com/google/caliper/examples/FormatterBenchmark.java new file mode 100644 index 0000000..f61f111 --- /dev/null +++ b/test/com/google/caliper/examples/FormatterBenchmark.java @@ -0,0 +1,77 @@ +/* + * 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.Runner; +import com.google.caliper.SimpleBenchmark; + +import java.util.Formatter; + +/** + * Compares Formatter against hand-written StringBuilder code. + */ +public class FormatterBenchmark extends SimpleBenchmark { + public void timeFormatter_NoFormatting(int reps) { + for (int i = 0; i < reps; i++) { + Formatter f = new Formatter(); + f.format("this is a reasonably short string that doesn't actually need any formatting"); + } + } + + public void timeStringBuilder_NoFormatting(int reps) { + for (int i = 0; i < reps; i++) { + StringBuilder sb = new StringBuilder(); + sb.append("this is a reasonably short string that doesn't actually need any formatting"); + } + } + + public void timeFormatter_OneInt(int reps) { + for (int i = 0; i < reps; i++) { + Formatter f = new Formatter(); + f.format("this is a reasonably short string that has an int %d in it", i); + } + } + + public void timeStringBuilder_OneInt(int reps) { + for (int i = 0; i < reps; i++) { + StringBuilder sb = new StringBuilder(); + sb.append("this is a reasonably short string that has an int "); + sb.append(i); + sb.append(" in it"); + } + } + + public void timeFormatter_OneString(int reps) { + for (int i = 0; i < reps; i++) { + Formatter f = new Formatter(); + f.format("this is a reasonably short string that has a string %s in it", "hello"); + } + } + + public void timeStringBuilder_OneString(int reps) { + for (int i = 0; i < reps; i++) { + StringBuilder sb = new StringBuilder(); + sb.append("this is a reasonably short string that has a string "); + sb.append("hello"); + sb.append(" in it"); + } + } + + public static void main(String[] args) throws Exception { + Runner.main(FormatterBenchmark.class, args); + } +} |