summaryrefslogtreecommitdiffstats
path: root/benchmarks/regression/CharacterBenchmark.java
diff options
context:
space:
mode:
Diffstat (limited to 'benchmarks/regression/CharacterBenchmark.java')
-rw-r--r--benchmarks/regression/CharacterBenchmark.java299
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]);
+ }
+ }
+ }
+ }
+}