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 long start = Long.parseLong(m.group(1), 16);
84 if (start < 0) {
85 throw new Exception("Failed parsing dcmd codecache output");
86 }
87 long mark = Long.parseLong(m.group(2), 16);
88 if (mark < 0) {
89 throw new Exception("Failed parsing dcmd codecache output");
90 }
91 long top = Long.parseLong(m.group(3), 16);
92 if (top < 0) {
93 throw new Exception("Failed parsing dcmd codecache output");
94 }
95 if (start > mark) {
96 throw new Exception("Failed parsing dcmd codecache output");
97 }
98 if (mark > top) {
99 throw new Exception("Failed parsing dcmd codecache output");
100 }
101 } else {
102 throw new Exception("Regexp 2 failed line: " + line);
103 }
104
105 // Validate third line
106 line = r.readLine();
107 m = line3.matcher(line);
108 if (m.matches()) {
109 int blobs = Integer.parseInt(m.group(1));
110 if (blobs <= 0) {
111 throw new Exception("Failed parsing dcmd codecache output");
112 }
113 int nmethods = Integer.parseInt(m.group(2));
114 if (nmethods <= 0) {
115 throw new Exception("Failed parsing dcmd codecache output");
116 }
117 int adapters = Integer.parseInt(m.group(3));
118 if (adapters <= 0) {
119 throw new Exception("Failed parsing dcmd codecache output");
120 }
121 if (blobs < (nmethods + adapters)) {
122 throw new Exception("Failed parsing dcmd codecache output");
123 }
124 } else {
125 throw new Exception("Regexp 3 failed");
126 }
127
128 // Validate fourth line
129 line = r.readLine();
130 m = line4.matcher(line);
131 if (m.matches()) {
132 if (!m.group(1).equals("enabled")) {
133 throw new Exception("Invalid message: '" + m.group(1) + "'");
134 }
135 } else {
136 throw new Exception("Regexp 4 failed");
137 }
138 }
139 }