author | iignatyev |
Wed, 15 Mar 2017 22:48:59 -0700 | |
changeset 44423 | 306c020eb154 |
parent 30376 | 2ccf2cf7ea48 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2011, 2015, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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/* |
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* @test |
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* @bug 6173675 |
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* @summary Basic test of ThreadMXBean.getThreadAllocatedBytes |
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* @author Paul Hohensee |
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*/ |
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import java.lang.management.*; |
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public class ThreadAllocatedMemory { |
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private static com.sun.management.ThreadMXBean mbean = |
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(com.sun.management.ThreadMXBean)ManagementFactory.getThreadMXBean(); |
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private static boolean testFailed = false; |
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private static boolean done = false; |
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private static boolean done1 = false; |
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private static Object obj = new Object(); |
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private static final int NUM_THREADS = 10; |
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private static Thread[] threads = new Thread[NUM_THREADS]; |
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private static long[] sizes = new long[NUM_THREADS]; |
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public static void main(String[] argv) |
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throws Exception { |
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if (!mbean.isThreadAllocatedMemorySupported()) { |
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return; |
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} |
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// disable allocated memory measurement |
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if (mbean.isThreadAllocatedMemoryEnabled()) { |
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mbean.setThreadAllocatedMemoryEnabled(false); |
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} |
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if (mbean.isThreadAllocatedMemoryEnabled()) { |
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throw new RuntimeException( |
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"ThreadAllocatedMemory is expected to be disabled"); |
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} |
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Thread curThread = Thread.currentThread(); |
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long id = curThread.getId(); |
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long s = mbean.getThreadAllocatedBytes(id); |
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if (s != -1) { |
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throw new RuntimeException( |
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"Invalid ThreadAllocatedBytes returned = " + |
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s + " expected = -1"); |
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} |
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// enable allocated memory measurement |
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if (!mbean.isThreadAllocatedMemoryEnabled()) { |
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mbean.setThreadAllocatedMemoryEnabled(true); |
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} |
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if (!mbean.isThreadAllocatedMemoryEnabled()) { |
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throw new RuntimeException( |
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"ThreadAllocatedMemory is expected to be enabled"); |
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} |
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long size = mbean.getThreadAllocatedBytes(id); |
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// implementation could have started measurement when |
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// measurement was enabled, in which case size can be 0 |
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if (size < 0) { |
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throw new RuntimeException( |
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"Invalid allocated bytes returned = " + size); |
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} |
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doit(); |
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// Expected to be size1 >= size |
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long size1 = mbean.getThreadAllocatedBytes(id); |
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if (size1 < size) { |
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throw new RuntimeException("Allocated bytes " + size1 + |
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" expected >= " + size); |
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} |
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System.out.println(curThread.getName() + |
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" Current thread allocated bytes = " + size + |
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" allocated bytes = " + size1); |
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// start threads, wait for them to block |
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for (int i = 0; i < NUM_THREADS; i++) { |
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threads[i] = new MyThread("MyThread-" + i); |
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threads[i].start(); |
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} |
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// threads block after doing some allocation |
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waitUntilThreadBlocked(); |
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for (int i = 0; i < NUM_THREADS; i++) { |
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sizes[i] = mbean.getThreadAllocatedBytes(threads[i].getId()); |
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} |
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// let threads go and do some more allocation |
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synchronized (obj) { |
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done = true; |
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obj.notifyAll(); |
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} |
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// wait for threads to get going again. we don't care if we |
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// catch them in mid-execution or if some of them haven't |
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// restarted after we're done sleeping. |
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goSleep(400); |
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for (int i = 0; i < NUM_THREADS; i++) { |
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long newSize = mbean.getThreadAllocatedBytes(threads[i].getId()); |
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if (sizes[i] > newSize) { |
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throw new RuntimeException("TEST FAILED: " + |
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threads[i].getName() + |
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" previous allocated bytes = " + sizes[i] + |
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" > current allocated bytes = " + newSize); |
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} |
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System.out.println(threads[i].getName() + |
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" Previous allocated bytes = " + sizes[i] + |
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136 |
" Current allocated bytes = " + newSize); |
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parents:
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|
137 |
} |
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phh
parents:
diff
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|
138 |
|
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parents:
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|
139 |
// let threads exit |
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parents:
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|
140 |
synchronized (obj) { |
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phh
parents:
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|
141 |
done1 = true; |
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phh
parents:
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|
142 |
obj.notifyAll(); |
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phh
parents:
diff
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|
143 |
} |
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phh
parents:
diff
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|
144 |
|
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|
145 |
for (int i = 0; i < NUM_THREADS; i++) { |
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parents:
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|
146 |
try { |
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phh
parents:
diff
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|
147 |
threads[i].join(); |
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phh
parents:
diff
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|
148 |
} catch (InterruptedException e) { |
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phh
parents:
diff
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|
149 |
System.out.println("Unexpected exception is thrown."); |
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phh
parents:
diff
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|
150 |
e.printStackTrace(System.out); |
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phh
parents:
diff
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|
151 |
testFailed = true; |
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phh
parents:
diff
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|
152 |
break; |
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phh
parents:
diff
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|
153 |
} |
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phh
parents:
diff
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|
154 |
} |
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phh
parents:
diff
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|
155 |
if (testFailed) { |
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phh
parents:
diff
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|
156 |
throw new RuntimeException("TEST FAILED"); |
192adf3627b7
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phh
parents:
diff
changeset
|
157 |
} |
192adf3627b7
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phh
parents:
diff
changeset
|
158 |
|
192adf3627b7
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phh
parents:
diff
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|
159 |
System.out.println("Test passed"); |
192adf3627b7
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phh
parents:
diff
changeset
|
160 |
} |
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phh
parents:
diff
changeset
|
161 |
|
192adf3627b7
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phh
parents:
diff
changeset
|
162 |
|
192adf3627b7
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phh
parents:
diff
changeset
|
163 |
private static void goSleep(long ms) throws Exception { |
192adf3627b7
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phh
parents:
diff
changeset
|
164 |
try { |
192adf3627b7
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phh
parents:
diff
changeset
|
165 |
Thread.sleep(ms); |
192adf3627b7
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phh
parents:
diff
changeset
|
166 |
} catch (InterruptedException e) { |
192adf3627b7
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phh
parents:
diff
changeset
|
167 |
System.out.println("Unexpected exception is thrown."); |
192adf3627b7
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phh
parents:
diff
changeset
|
168 |
throw e; |
192adf3627b7
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phh
parents:
diff
changeset
|
169 |
} |
192adf3627b7
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phh
parents:
diff
changeset
|
170 |
} |
192adf3627b7
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phh
parents:
diff
changeset
|
171 |
|
192adf3627b7
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phh
parents:
diff
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|
172 |
private static void waitUntilThreadBlocked() |
192adf3627b7
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phh
parents:
diff
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|
173 |
throws Exception { |
192adf3627b7
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phh
parents:
diff
changeset
|
174 |
int count = 0; |
192adf3627b7
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phh
parents:
diff
changeset
|
175 |
while (count != NUM_THREADS) { |
192adf3627b7
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phh
parents:
diff
changeset
|
176 |
goSleep(100); |
192adf3627b7
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phh
parents:
diff
changeset
|
177 |
count = 0; |
192adf3627b7
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phh
parents:
diff
changeset
|
178 |
for (int i = 0; i < NUM_THREADS; i++) { |
192adf3627b7
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phh
parents:
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|
179 |
ThreadInfo info = mbean.getThreadInfo(threads[i].getId()); |
192adf3627b7
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phh
parents:
diff
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|
180 |
if (info.getThreadState() == Thread.State.WAITING) { |
192adf3627b7
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phh
parents:
diff
changeset
|
181 |
count++; |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
182 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
183 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
184 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
185 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
186 |
|
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
187 |
public static void doit() { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
188 |
String tmp = ""; |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
189 |
long hashCode = 0; |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
190 |
for (int counter = 0; counter < 1000; counter++) { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
191 |
tmp += counter; |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
192 |
hashCode = tmp.hashCode(); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
193 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
194 |
System.out.println(Thread.currentThread().getName() + |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
195 |
" hashcode: " + hashCode); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
196 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
197 |
|
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
198 |
static class MyThread extends Thread { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
199 |
public MyThread(String name) { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
200 |
super(name); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
201 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
202 |
|
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
203 |
public void run() { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
204 |
ThreadAllocatedMemory.doit(); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
205 |
|
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
206 |
synchronized (obj) { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
207 |
while (!done) { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
208 |
try { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
209 |
obj.wait(); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
210 |
} catch (InterruptedException e) { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
211 |
System.out.println("Unexpected exception is thrown."); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
212 |
e.printStackTrace(System.out); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
213 |
testFailed = true; |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
214 |
break; |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
215 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
216 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
217 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
218 |
|
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
219 |
long size1 = mbean.getThreadAllocatedBytes(getId()); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
220 |
ThreadAllocatedMemory.doit(); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
221 |
long size2 = mbean.getThreadAllocatedBytes(getId()); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
222 |
|
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
223 |
System.out.println(getName() + ": " + |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
224 |
"ThreadAllocatedBytes = " + size1 + |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
225 |
" ThreadAllocatedBytes = " + size2); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
226 |
|
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
227 |
if (size1 > size2) { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
228 |
throw new RuntimeException("TEST FAILED: " + getName() + |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
229 |
" ThreadAllocatedBytes = " + size1 + |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
230 |
" > ThreadAllocatedBytes = " + size2); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
231 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
232 |
|
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
233 |
synchronized (obj) { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
234 |
while (!done1) { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
235 |
try { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
236 |
obj.wait(); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
237 |
} catch (InterruptedException e) { |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
238 |
System.out.println("Unexpected exception is thrown."); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
239 |
e.printStackTrace(System.out); |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
240 |
testFailed = true; |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
241 |
break; |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
242 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
243 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
244 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
245 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
246 |
} |
192adf3627b7
6173675: M&M: approximate memory allocation rate/amount per thread
phh
parents:
diff
changeset
|
247 |
} |