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 TestParallelGCThreads
26 * @key gc
27 * @bug 8059527
28 * @summary Tests argument processing for ParallelGCThreads
29 * @library /testlibrary
30 * @modules java.base/sun.misc
31 * java.management
32 * @run driver TestParallelGCThreads
33 */
34
35 import com.oracle.java.testlibrary.*;
36
37 public class TestParallelGCThreads {
38
39 public static void main(String args[]) throws Exception {
40
41 // For each parallel collector (G1, Parallel, ParNew/CMS)
42 for (String gc : new String[] {"G1", "Parallel", "ConcMarkSweep"}) {
43
44 // Make sure the VM does not allow ParallelGCThreads set to 0
45 String[] flags = new String[] {"-XX:+Use" + gc + "GC", "-XX:ParallelGCThreads=0", "-XX:+PrintFlagsFinal", "-version"};
46 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flags);
47 OutputAnalyzer output = new OutputAnalyzer(pb.start());
48 output.shouldHaveExitValue(1);
49
50 // Do some basic testing to ensure the flag updates the count
51 for (long i = 1; i <= 3; i++) {
52 flags = new String[] {"-XX:+Use" + gc + "GC", "-XX:ParallelGCThreads=" + i, "-XX:+PrintFlagsFinal", "-version"};
53 long count = getParallelGCThreadCount(flags);
54 Asserts.assertEQ(count, i, "Specifying ParallelGCThreads=" + i + " for " + gc + "GC does not set the thread count properly!");
55 }
|
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 TestParallelGCThreads
26 * @key gc
27 * @bug 8059527
28 * @summary Tests argument processing for ParallelGCThreads
29 * @library /testlibrary
30 * @modules java.base/sun.misc
31 * java.management
32 * @run driver TestParallelGCThreads
33 */
34
35 import jdk.test.lib.*;
36
37 public class TestParallelGCThreads {
38
39 public static void main(String args[]) throws Exception {
40
41 // For each parallel collector (G1, Parallel, ParNew/CMS)
42 for (String gc : new String[] {"G1", "Parallel", "ConcMarkSweep"}) {
43
44 // Make sure the VM does not allow ParallelGCThreads set to 0
45 String[] flags = new String[] {"-XX:+Use" + gc + "GC", "-XX:ParallelGCThreads=0", "-XX:+PrintFlagsFinal", "-version"};
46 ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(flags);
47 OutputAnalyzer output = new OutputAnalyzer(pb.start());
48 output.shouldHaveExitValue(1);
49
50 // Do some basic testing to ensure the flag updates the count
51 for (long i = 1; i <= 3; i++) {
52 flags = new String[] {"-XX:+Use" + gc + "GC", "-XX:ParallelGCThreads=" + i, "-XX:+PrintFlagsFinal", "-version"};
53 long count = getParallelGCThreadCount(flags);
54 Asserts.assertEQ(count, i, "Specifying ParallelGCThreads=" + i + " for " + gc + "GC does not set the thread count properly!");
55 }
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