Author: markt
Date: Wed Mar 20 19:27:44 2013
New Revision: 1459010
URL: http://svn.apache.org/r1459010
Log:
Add test case used to investigate Base64 decoder performance
Added:
tomcat/trunk/test/org/apache/catalina/util/TesterBase64Performance.java
(with props)
Added: tomcat/trunk/test/org/apache/catalina/util/TesterBase64Performance.java
URL:
http://svn.apache.org/viewvc/tomcat/trunk/test/org/apache/catalina/util/TesterBase64Performance.java?rev=1459010&view=auto
==============================================================================
--- tomcat/trunk/test/org/apache/catalina/util/TesterBase64Performance.java
(added)
+++ tomcat/trunk/test/org/apache/catalina/util/TesterBase64Performance.java Wed
Mar 20 19:27:44 2013
@@ -0,0 +1,113 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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 org.apache.catalina.util;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import javax.xml.bind.DatatypeConverter;
+
+import org.junit.Test;
+
+import org.apache.tomcat.util.buf.B2CConverter;
+import org.apache.tomcat.util.buf.ByteChunk;
+import org.apache.tomcat.util.buf.CharChunk;
+
+public class TesterBase64Performance {
+
+ private static final int SIZE = 1000000;
+
+ @Test
+ public void testDecode() throws Exception {
+
+ List<ByteChunk> inputs = new ArrayList<>(SIZE);
+ List<ByteChunk> warmups = new ArrayList<>(SIZE);
+ List<String> results = new ArrayList<>(SIZE);
+
+ for (int i = 0; i < SIZE; i++) {
+ String decodedString = "abc" + Integer.valueOf(i) +
+ ":abc" + Integer.valueOf(i);
+ byte[] decodedBytes =
+ decodedString.getBytes(B2CConverter.ISO_8859_1);
+ String encodedString =
+ DatatypeConverter.printBase64Binary(decodedBytes);
+ byte[] encodedBytes =
+ encodedString.getBytes(B2CConverter.ISO_8859_1);
+
+ ByteChunk bc = new ByteChunk(encodedBytes.length);
+ bc.append(encodedBytes, 0, encodedBytes.length);
+
+ inputs.add(bc);
+ }
+
+
+ for (int i = 0; i < SIZE; i++) {
+ String decodedString = "zyx" + Integer.valueOf(i) +
+ ":zyx" + Integer.valueOf(i);
+ byte[] decodedBytes =
+ decodedString.getBytes(B2CConverter.ISO_8859_1);
+ String encodedString =
+ DatatypeConverter.printBase64Binary(decodedBytes);
+ byte[] encodedBytes =
+ encodedString.getBytes(B2CConverter.ISO_8859_1);
+
+ ByteChunk bc = new ByteChunk(encodedBytes.length);
+ bc.append(encodedBytes, 0, encodedBytes.length);
+
+ warmups.add(bc);
+ }
+
+ //Warm up
+ for (ByteChunk bc : warmups) {
+ CharChunk cc = new CharChunk(bc.getLength());
+ Base64.decode(bc, cc);
+ results.add(cc.toString());
+ }
+ results.clear();
+
+ for (ByteChunk bc : warmups) {
+ byte[] decodedBytes =
+ DatatypeConverter.parseBase64Binary(bc.toString());
+ String decodedString =
+ new String(decodedBytes, B2CConverter.ISO_8859_1);
+ results.add(decodedString);
+ }
+ results.clear();
+
+ long startTomcat = System.currentTimeMillis();
+ for (ByteChunk bc : inputs) {
+ CharChunk cc = new CharChunk(bc.getLength());
+ Base64.decode(bc, cc);
+ results.add(cc.toString());
+ }
+ long stopTomcat = System.currentTimeMillis();
+ System.out.println("Tomcat: " + (stopTomcat - startTomcat) + " ms");
+
+ results.clear();
+
+ long startJre = System.currentTimeMillis();
+ for (ByteChunk bc : inputs) {
+ byte[] decodedBytes =
+ DatatypeConverter.parseBase64Binary(bc.toString());
+ String decodedString =
+ new String(decodedBytes, B2CConverter.ISO_8859_1);
+ results.add(decodedString);
+ }
+ long stopJre = System.currentTimeMillis();
+ System.out.println("JRE: " + (stopJre - startJre) + " ms");
+ }
+}
Propchange:
tomcat/trunk/test/org/apache/catalina/util/TesterBase64Performance.java
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