1 /* 2 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* 25 * @test CodeCacheTest 26 * @bug 8054889 27 * @build DcmdUtil CodeCacheTest 28 * @run main CodeCacheTest 29 * @summary Test of diagnostic command Compiler.codecache 30 */ 31 32 import java.io.BufferedReader; 33 import java.io.StringReader; 34 import java.lang.reflect.Method; 35 import java.util.regex.Matcher; 36 import java.util.regex.Pattern; 37 38 public class CodeCacheTest { 39 40 /** 41 * This test calls Jcmd (diagnostic command tool) Compiler.codecache and then parses the output, 42 * making sure that all number look ok 43 * 44 * 45 * Expected output: 46 * 47 * CodeCache: size=245760Kb used=4680Kb max_used=4680Kb free=241079Kb 48 * bounds [0x00007f5bd9000000, 0x00007f5bd94a0000, 0x00007f5be8000000] 49 * total_blobs=575 nmethods=69 adapters=423 50 * compilation: enabled 51 */ 52 53 static Pattern line1 = Pattern.compile("CodeCache: size=(\\p{Digit}*)Kb used=(\\p{Digit}*)Kb max_used=(\\p{Digit}*)Kb free=(\\p{Digit}*)Kb"); 54 static Pattern line2 = Pattern.compile(" bounds \\[0x(\\p{XDigit}*), 0x(\\p{XDigit}*), 0x(\\p{XDigit}*)\\]"); 55 static Pattern line3 = Pattern.compile(" total_blobs=(\\p{Digit}*) nmethods=(\\p{Digit}*) adapters=(\\p{Digit}*)"); 56 static Pattern line4 = Pattern.compile(" compilation: (\\w*)"); 57 58 public static void main(String arg[]) throws Exception { 59 60 // Get output from dcmd (diagnostic command) 61 String result = DcmdUtil.executeDcmd("Compiler.codecache"); 62 BufferedReader r = new BufferedReader(new StringReader(result)); 63 64 // Validate first line 65 String line; 66 line = r.readLine(); 67 Matcher m = line1.matcher(line); 68 if (m.matches()) { 69 for(int i = 1; i <= 4; i++) { 70 int val = Integer.parseInt(m.group(i)); 71 if (val < 0) { 72 throw new Exception("Failed parsing dcmd codecache output"); 73 } 74 } 75 } else { 76 throw new Exception("Regexp 1 failed"); 77 } 78 79 // Validate second line 80 line = r.readLine(); 81 m = line2.matcher(line); 82 if (m.matches()) { 83 String start = m.group(1); 84 String mark = m.group(2); 85 String top = m.group(3); 86 87 // Lexical compare of hex numbers to check that they look sane. 88 if (start.compareTo(mark) > 1) { 89 throw new Exception("Failed parsing dcmd codecache output"); 90 } 91 if (mark.compareTo(top) > 1) { 92 throw new Exception("Failed parsing dcmd codecache output"); 93 } 94 } else { 95 throw new Exception("Regexp 2 failed line: " + line); 96 } 97 98 // Validate third line 99 line = r.readLine(); 100 m = line3.matcher(line); 101 if (m.matches()) { 102 int blobs = Integer.parseInt(m.group(1)); 103 if (blobs <= 0) { 104 throw new Exception("Failed parsing dcmd codecache output"); 105 } 106 int nmethods = Integer.parseInt(m.group(2)); 107 if (nmethods <= 0) { 108 throw new Exception("Failed parsing dcmd codecache output"); 109 } 110 int adapters = Integer.parseInt(m.group(3)); 111 if (adapters <= 0) { 112 throw new Exception("Failed parsing dcmd codecache output"); 113 } 114 if (blobs < (nmethods + adapters)) { 115 throw new Exception("Failed parsing dcmd codecache output"); 116 } 117 } else { 118 throw new Exception("Regexp 3 failed"); 119 } 120 121 // Validate fourth line 122 line = r.readLine(); 123 m = line4.matcher(line); 124 if (m.matches()) { 125 if (!m.group(1).equals("enabled")) { 126 throw new Exception("Invalid message: '" + m.group(1) + "'"); 127 } 128 } else { 129 throw new Exception("Regexp 4 failed"); 130 } 131 } 132 }