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 import java.util.ArrayList;
26
27 import sun.hotspot.code.BlobType;
28
29 /*
30 * @test RandomAllocationTest
31 * @library /testlibrary /test/lib
32 * @modules java.base/jdk.internal.misc
33 * java.management
34 * @build RandomAllocationTest
35 * @run main ClassFileInstaller sun.hotspot.WhiteBox
36 * sun.hotspot.WhiteBox$WhiteBoxPermission
37 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
38 * -XX:CompileCommand=dontinline,Helper$TestCase::method
39 * -XX:+WhiteBoxAPI -XX:-SegmentedCodeCache RandomAllocationTest
40 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
41 * -XX:CompileCommand=dontinline,Helper$TestCase::method
42 * -XX:+WhiteBoxAPI -XX:+SegmentedCodeCache RandomAllocationTest
43 * @summary stressing code cache by allocating randomly sized "dummy" code blobs
44 */
45 public class RandomAllocationTest implements Runnable {
46 private static final long CODE_CACHE_SIZE
47 = Helper.WHITE_BOX.getUintxVMFlag("ReservedCodeCacheSize");
48 private static final int MAX_BLOB_SIZE = (int) (CODE_CACHE_SIZE >> 7);
49 private static final BlobType[] BLOB_TYPES
50 = BlobType.getAvailable().toArray(new BlobType[0]);
51
52 public static void main(String[] args) {
53 new CodeCacheStressRunner(new RandomAllocationTest()).runTest();
54 }
55
56 private final ArrayList<Long> blobs = new ArrayList<>();
57 @Override
58 public void run() {
59 boolean allocate = blobs.isEmpty() || Helper.RNG.nextBoolean();
60 if (allocate) {
61 int type = Helper.RNG.nextInt(BLOB_TYPES.length);
62 long addr = Helper.WHITE_BOX.allocateCodeBlob(
63 Helper.RNG.nextInt(MAX_BLOB_SIZE), BLOB_TYPES[type].id);
64 if (addr != 0) {
|
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 /*
26 * @test RandomAllocationTest
27 * @summary stressing code cache by allocating randomly sized "dummy" code blobs
28 * @library /testlibrary /test/lib /
29 * @modules java.base/jdk.internal.misc
30 * java.management
31 *
32 * @build compiler.codecache.stress.RandomAllocationTest
33 * @run driver ClassFileInstaller sun.hotspot.WhiteBox
34 * sun.hotspot.WhiteBox$WhiteBoxPermission
35 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
36 * -XX:+WhiteBoxAPI
37 * -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method
38 * -XX:-SegmentedCodeCache
39 * compiler.codecache.stress.RandomAllocationTest
40 * @run main/othervm -Xbootclasspath/a:. -XX:+UnlockDiagnosticVMOptions
41 * -XX:+WhiteBoxAPI
42 * -XX:CompileCommand=dontinline,compiler.codecache.stress.Helper$TestCase::method
43 * -XX:+SegmentedCodeCache
44 * compiler.codecache.stress.RandomAllocationTest
45 */
46
47 package compiler.codecache.stress;
48
49 import sun.hotspot.code.BlobType;
50
51 import java.util.ArrayList;
52
53 public class RandomAllocationTest implements Runnable {
54 private static final long CODE_CACHE_SIZE
55 = Helper.WHITE_BOX.getUintxVMFlag("ReservedCodeCacheSize");
56 private static final int MAX_BLOB_SIZE = (int) (CODE_CACHE_SIZE >> 7);
57 private static final BlobType[] BLOB_TYPES
58 = BlobType.getAvailable().toArray(new BlobType[0]);
59
60 public static void main(String[] args) {
61 new CodeCacheStressRunner(new RandomAllocationTest()).runTest();
62 }
63
64 private final ArrayList<Long> blobs = new ArrayList<>();
65 @Override
66 public void run() {
67 boolean allocate = blobs.isEmpty() || Helper.RNG.nextBoolean();
68 if (allocate) {
69 int type = Helper.RNG.nextInt(BLOB_TYPES.length);
70 long addr = Helper.WHITE_BOX.allocateCodeBlob(
71 Helper.RNG.nextInt(MAX_BLOB_SIZE), BLOB_TYPES[type].id);
72 if (addr != 0) {
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