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23 
24 package gc.arguments;
25 
26 /**
27  * @test TestUseNUMAInterleaving
28  * @summary Tests that UseNUMAInterleaving enabled for all collectors by
29  * ergonomics, on all platforms when UseNUMA feature is enabled.
30  * @bug 8059614
31  * @key gc
32  * @library /test/lib
33  * @library /
34  * @modules java.base/jdk.internal.misc
35  *          java.management
36  * @run driver gc.arguments.TestUseNUMAInterleaving
37  */
38 import jdk.test.lib.process.OutputAnalyzer;
39 import jdk.test.lib.process.ProcessTools;
40 
41 public class TestUseNUMAInterleaving {
42 
main(String[] args)43     public static void main(String[] args) throws Exception {
44         String[] vmargs = new String[]{
45             "-XX:+UseNUMA",
46             "-XX:+PrintFlagsFinal",
47             "-version"
48         };
49         ProcessBuilder pb = GCArguments.createJavaProcessBuilder(true, vmargs);
50         OutputAnalyzer output = new OutputAnalyzer(pb.start());
51 
52         boolean isNUMAEnabled
53                 = Boolean.parseBoolean(output.firstMatch(NUMA_FLAG_PATTERN, 1));
54 
55         if (isNUMAEnabled) {
56             output.shouldMatch("\\bUseNUMAInterleaving\\b.*?=.*?true");
57             System.out.println(output.getStdout());
58         } else {
59             System.out.println(output.firstMatch(NUMA_FLAG_PATTERN));
60             System.out.println(output.firstMatch(NUMA_FLAG_PATTERN, 1));
61         }
62     }
63 
64     private static final String NUMA_FLAG_PATTERN = "\\bUseNUMA\\b.*?=.*?([a-z]+)";
65 }
66