| /* |
| * 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.tomcat.util.http; |
| |
| import java.io.UnsupportedEncodingException; |
| import java.nio.charset.Charset; |
| import java.nio.charset.StandardCharsets; |
| import java.util.logging.Level; |
| import java.util.logging.LogManager; |
| |
| import org.junit.Assert; |
| import org.junit.Test; |
| |
| import org.apache.tomcat.util.buf.B2CConverter; |
| |
| public class TesterParametersPerformance { |
| |
| @Test |
| public void testProcessParametersByteArrayIntInt() { |
| LogManager.getLogManager().getLogger("").setLevel(Level.OFF); |
| doTestProcessParametersMultiple("foo".getBytes()); |
| } |
| |
| private void doTestProcessParametersMultiple(byte[] input) { |
| System.out.println(doTestProcessParameters(input, 10000)); |
| System.out.println(doTestProcessParameters(input, 20000)); |
| System.out.println(doTestProcessParameters(input, 40000)); |
| System.out.println(doTestProcessParameters(input, 80000)); |
| System.out.println(doTestProcessParameters(input, 160000)); |
| System.out.println(doTestProcessParameters(input, 320000)); |
| System.out.println(doTestProcessParameters(input, 640000)); |
| System.out.println(doTestProcessParameters(input, 1280000)); |
| } |
| |
| private long doTestProcessParameters(byte[] input, int size) { |
| Assert.assertEquals(input.length, 3); |
| |
| Parameters p = new Parameters(); |
| |
| byte[] params = createParams(input, size); |
| //byte[] input = createParams(8); |
| p.setEncoding("ISO-8859-1"); |
| long start = System.nanoTime(); |
| p.processParameters(params, 0, params.length); |
| return System.nanoTime() - start; |
| } |
| |
| private byte[] createParams(byte[] input, int len) { |
| byte[] result = new byte[len * 4 - 1]; |
| |
| for (int i = 0; i < len; i++) { |
| result[i * 4] = input[0]; |
| result[i * 4 + 1] = input[1]; |
| result[i * 4 + 2] = input[2]; |
| if (i < len -1) { |
| result[i * 4 + 3] = 38; |
| } |
| } |
| return result; |
| } |
| |
| @Test |
| public void testCreateString() throws UnsupportedEncodingException { |
| B2CConverter.getCharset("ISO-8859-1"); |
| doCreateStringMultiple("foo"); |
| } |
| |
| private void doCreateStringMultiple(String input) { |
| System.out.println(doCreateString(input, 10, true)); |
| System.out.println(doCreateString(input, 100, true)); |
| System.out.println(doCreateString(input, 1000, true)); |
| System.out.println(doCreateString(input, 10000, true)); |
| System.out.println(doCreateString(input, 100000, true)); |
| System.out.println(doCreateString(input, 1000000, true)); |
| System.out.println(doCreateString(input, 2000000, true)); |
| //System.out.println(doCreateString(input, 4000000, true)); |
| //System.out.println(doCreateString(input, 8000000, true)); |
| System.out.println(doCreateString(input, 10, false)); |
| System.out.println(doCreateString(input, 100, false)); |
| System.out.println(doCreateString(input, 1000, false)); |
| System.out.println(doCreateString(input, 10000, false)); |
| System.out.println(doCreateString(input, 100000, false)); |
| System.out.println(doCreateString(input, 1000000, false)); |
| System.out.println(doCreateString(input, 2000000, false)); |
| //System.out.println(doCreateString(input, 4000000, false)); |
| //System.out.println(doCreateString(input, 8000000, false)); |
| } |
| |
| private long doCreateString(String input, int size, |
| boolean defensiveCopyWorkAround) { |
| int loops = 10000; |
| byte[] inputBytes = input.getBytes(); |
| byte[] bytes = new byte[size]; |
| int inputLength = inputBytes.length; |
| |
| System.arraycopy(inputBytes, 0, bytes, 0, inputLength); |
| |
| String[] result = new String[loops]; |
| Charset charset = StandardCharsets.ISO_8859_1; |
| |
| long start = System.nanoTime(); |
| for (int i = 0; i < loops; i++) { |
| if (defensiveCopyWorkAround) { |
| byte[] tmp = new byte[inputLength]; |
| System.arraycopy(bytes, 0, tmp, 0, inputLength); |
| result[i] = new String(tmp, 0, inputLength, charset); |
| } else { |
| result[i] = new String(bytes, 0, inputLength, charset); |
| } |
| } |
| |
| return System.nanoTime() - start; |
| } |
| } |