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Diffstat (limited to 'benchmarks/regression/CharacterBenchmark.java')
-rw-r--r-- | benchmarks/regression/CharacterBenchmark.java | 299 |
1 files changed, 299 insertions, 0 deletions
diff --git a/benchmarks/regression/CharacterBenchmark.java b/benchmarks/regression/CharacterBenchmark.java new file mode 100644 index 0000000..953513b --- /dev/null +++ b/benchmarks/regression/CharacterBenchmark.java @@ -0,0 +1,299 @@ +/* + * 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 benchmarks.regression; + +import com.google.caliper.Param; +import com.google.caliper.Runner; +import com.google.caliper.SimpleBenchmark; + +/** + * Tests various Character methods, intended for testing multiple + * implementations against each other. + */ +public class CharacterBenchmark extends SimpleBenchmark { + + @Param private CharacterSet characterSet; + + @Param private Overload overload; + + private char[] chars; + + @Override protected void setUp() throws Exception { + this.chars = characterSet.chars; + } + + public enum Overload { CHAR, INT } + + @Override public double nanosToUnits(double nanos) { + return nanos / 65536; + } + + public enum CharacterSet { + ASCII(128), + UNICODE(65536); + final char[] chars; + CharacterSet(int size) { + this.chars = new char[65536]; + for (int i = 0; i < 65536; ++i) { + chars[i] = (char) (i % size); + } + } + } + + // A fake benchmark to give us a baseline. + public boolean timeIsSpace(int reps) { + boolean dummy = false; + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + dummy ^= ((char) ch == ' '); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + dummy ^= (ch == ' '); + } + } + } + return dummy; + } + + public void timeDigit(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.digit(chars[ch], 10); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.digit((int) chars[ch], 10); + } + } + } + } + + public void timeGetNumericValue(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.getNumericValue(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.getNumericValue((int) chars[ch]); + } + } + } + } + + public void timeIsDigit(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isDigit(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isDigit((int) chars[ch]); + } + } + } + } + + public void timeIsIdentifierIgnorable(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isIdentifierIgnorable(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isIdentifierIgnorable((int) chars[ch]); + } + } + } + } + + public void timeIsJavaIdentifierPart(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isJavaIdentifierPart(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isJavaIdentifierPart((int) chars[ch]); + } + } + } + } + + public void timeIsJavaIdentifierStart(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isJavaIdentifierStart(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isJavaIdentifierStart((int) chars[ch]); + } + } + } + } + + public void timeIsLetter(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isLetter(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isLetter((int) chars[ch]); + } + } + } + } + + public void timeIsLetterOrDigit(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isLetterOrDigit(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isLetterOrDigit((int) chars[ch]); + } + } + } + } + + public void timeIsLowerCase(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isLowerCase(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isLowerCase((int) chars[ch]); + } + } + } + } + + public void timeIsSpaceChar(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isSpaceChar(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isSpaceChar((int) chars[ch]); + } + } + } + } + + public void timeIsUpperCase(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isUpperCase(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isUpperCase((int) chars[ch]); + } + } + } + } + + public void timeIsWhitespace(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isWhitespace(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.isWhitespace((int) chars[ch]); + } + } + } + } + + public void timeToLowerCase(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.toLowerCase(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.toLowerCase((int) chars[ch]); + } + } + } + } + + public void timeToUpperCase(int reps) { + if (overload == Overload.CHAR) { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.toUpperCase(chars[ch]); + } + } + } else { + for (int i = 0; i < reps; ++i) { + for (int ch = 0; ch < 65536; ++ch) { + Character.toUpperCase((int) chars[ch]); + } + } + } + } +} |