22 */
23
24 /*
25 * @test
26 * @bug 8024927
27 * @summary Testing address of compressed class pointer space as best as possible.
28 * @library /testlibrary
29 * @modules java.base/sun.misc
30 * java.management
31 */
32
33 import jdk.test.lib.*;
34
35 public class CompressedClassPointers {
36
37 public static void smallHeapTest() throws Exception {
38 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
39 "-XX:+UnlockDiagnosticVMOptions",
40 "-XX:SharedBaseAddress=8g",
41 "-Xmx128m",
42 "-XX:+PrintCompressedOopsMode",
43 "-XX:+VerifyBeforeGC", "-version");
44 OutputAnalyzer output = new OutputAnalyzer(pb.start());
45 output.shouldContain("Narrow klass base: 0x0000000000000000");
46 output.shouldHaveExitValue(0);
47 }
48
49 public static void smallHeapTestWith3G() throws Exception {
50 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
51 "-XX:+UnlockDiagnosticVMOptions",
52 "-XX:CompressedClassSpaceSize=3g",
53 "-Xmx128m",
54 "-XX:+PrintCompressedOopsMode",
55 "-XX:+VerifyBeforeGC", "-version");
56 OutputAnalyzer output = new OutputAnalyzer(pb.start());
57 output.shouldContain("Narrow klass base: 0x0000000000000000, Narrow klass shift: 3");
58 output.shouldHaveExitValue(0);
59 }
60
61 public static void largeHeapTest() throws Exception {
62 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
63 "-XX:+UnlockDiagnosticVMOptions",
64 "-Xmx30g",
65 "-XX:+PrintCompressedOopsMode",
66 "-XX:+VerifyBeforeGC", "-version");
67 OutputAnalyzer output = new OutputAnalyzer(pb.start());
68 output.shouldNotContain("Narrow klass base: 0x0000000000000000");
69 output.shouldContain("Narrow klass shift: 0");
70 output.shouldHaveExitValue(0);
71 }
72
73 public static void largePagesTest() throws Exception {
74 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
75 "-XX:+UnlockDiagnosticVMOptions",
76 "-Xmx128m",
77 "-XX:+UseLargePages",
78 "-XX:+PrintCompressedOopsMode",
79 "-XX:+VerifyBeforeGC", "-version");
80 OutputAnalyzer output = new OutputAnalyzer(pb.start());
81 output.shouldContain("Narrow klass base:");
82 output.shouldHaveExitValue(0);
83 }
84
85 public static void heapBaseMinAddressTest() throws Exception {
86 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
87 "-XX:HeapBaseMinAddress=1m",
88 "-XX:+UnlockDiagnosticVMOptions",
89 "-XX:+PrintCompressedOopsMode",
90 "-version");
91 OutputAnalyzer output = new OutputAnalyzer(pb.start());
92 output.shouldContain("HeapBaseMinAddress must be at least");
93 output.shouldHaveExitValue(0);
94 }
95
96 public static void sharingTest() throws Exception {
97 // Test small heaps
98 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
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22 */
23
24 /*
25 * @test
26 * @bug 8024927
27 * @summary Testing address of compressed class pointer space as best as possible.
28 * @library /testlibrary
29 * @modules java.base/sun.misc
30 * java.management
31 */
32
33 import jdk.test.lib.*;
34
35 public class CompressedClassPointers {
36
37 public static void smallHeapTest() throws Exception {
38 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
39 "-XX:+UnlockDiagnosticVMOptions",
40 "-XX:SharedBaseAddress=8g",
41 "-Xmx128m",
42 "-Xlog:gc+metaspace+init=develop",
43 "-XX:+VerifyBeforeGC", "-version");
44 OutputAnalyzer output = new OutputAnalyzer(pb.start());
45 output.shouldContain("Narrow klass base: 0x0000000000000000");
46 output.shouldHaveExitValue(0);
47 }
48
49 public static void smallHeapTestWith3G() throws Exception {
50 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
51 "-XX:+UnlockDiagnosticVMOptions",
52 "-XX:CompressedClassSpaceSize=3g",
53 "-Xmx128m",
54 "-Xlog:gc+metaspace+init=develop",
55 "-XX:+VerifyBeforeGC", "-version");
56 OutputAnalyzer output = new OutputAnalyzer(pb.start());
57 output.shouldContain("Narrow klass base: 0x0000000000000000, Narrow klass shift: 3");
58 output.shouldHaveExitValue(0);
59 }
60
61 public static void largeHeapTest() throws Exception {
62 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
63 "-XX:+UnlockDiagnosticVMOptions",
64 "-Xmx30g",
65 "-Xlog:gc+metaspace+init=develop",
66 "-XX:+VerifyBeforeGC", "-version");
67 OutputAnalyzer output = new OutputAnalyzer(pb.start());
68 output.shouldNotContain("Narrow klass base: 0x0000000000000000");
69 output.shouldContain("Narrow klass shift: 0");
70 output.shouldHaveExitValue(0);
71 }
72
73 public static void largePagesTest() throws Exception {
74 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
75 "-XX:+UnlockDiagnosticVMOptions",
76 "-Xmx128m",
77 "-XX:+UseLargePages",
78 "-Xlog:gc+metaspace+init=develop",
79 "-XX:+VerifyBeforeGC", "-version");
80 OutputAnalyzer output = new OutputAnalyzer(pb.start());
81 output.shouldContain("Narrow klass base:");
82 output.shouldHaveExitValue(0);
83 }
84
85 public static void heapBaseMinAddressTest() throws Exception {
86 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
87 "-XX:HeapBaseMinAddress=1m",
88 "-XX:+UnlockDiagnosticVMOptions",
89 "-XX:+PrintCompressedOopsMode",
90 "-version");
91 OutputAnalyzer output = new OutputAnalyzer(pb.start());
92 output.shouldContain("HeapBaseMinAddress must be at least");
93 output.shouldHaveExitValue(0);
94 }
95
96 public static void sharingTest() throws Exception {
97 // Test small heaps
98 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
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