--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/hotspot/jtreg/gc/shenandoah/options/TestExplicitGC.java Mon Dec 10 15:47:44 2018 +0100
@@ -0,0 +1,167 @@
+/*
+ * Copyright (c) 2017, 2018, Red Hat, Inc. All rights reserved.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ *
+ */
+
+/*
+ * @test TestExplicitGC
+ * @summary Test that Shenandoah reacts to explicit GC flags appropriately
+ * @key gc
+ * @requires vm.gc.Shenandoah
+ * @library /test/lib
+ * @modules java.base/jdk.internal.misc
+ * java.management
+ * @run driver TestExplicitGC
+ */
+
+import jdk.test.lib.process.ProcessTools;
+import jdk.test.lib.process.OutputAnalyzer;
+
+public class TestExplicitGC {
+
+ enum Mode {
+ PRODUCT,
+ DIAGNOSTIC,
+ EXPERIMENTAL,
+ }
+
+ public static void main(String[] args) throws Exception {
+ if (args.length > 0) {
+ System.out.println("Calling System.gc()");
+ System.gc();
+ return;
+ }
+
+ String[] full = new String[] {
+ "Pause Full"
+ };
+
+ String[] concNormal = new String[] {
+ "Pause Init Mark",
+ "Pause Final Mark",
+ };
+
+ String[] concTraversal = new String[] {
+ "Pause Init Traversal",
+ "Pause Final Traversal",
+ };
+
+ {
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockExperimentalVMOptions",
+ "-XX:+UseShenandoahGC",
+ "-Xlog:gc",
+ TestExplicitGC.class.getName(),
+ "test");
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+ for (String p : full) {
+ output.shouldNotContain(p);
+ }
+ for (String p : concNormal) {
+ output.shouldContain(p);
+ }
+ for (String p : concTraversal) {
+ output.shouldNotContain(p);
+ }
+ }
+
+ {
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockExperimentalVMOptions",
+ "-XX:+UseShenandoahGC",
+ "-Xlog:gc",
+ "-XX:+DisableExplicitGC",
+ TestExplicitGC.class.getName(),
+ "test");
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+ for (String p : full) {
+ output.shouldNotContain(p);
+ }
+ for (String p : concNormal) {
+ output.shouldNotContain(p);
+ }
+ for (String p : concTraversal) {
+ output.shouldNotContain(p);
+ }
+ }
+
+ {
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockExperimentalVMOptions",
+ "-XX:+UseShenandoahGC",
+ "-Xlog:gc",
+ "-XX:+ExplicitGCInvokesConcurrent",
+ TestExplicitGC.class.getName(),
+ "test");
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+ for (String p : full) {
+ output.shouldNotContain(p);
+ }
+ for (String p : concNormal) {
+ output.shouldContain(p);
+ }
+ for (String p : concTraversal) {
+ output.shouldNotContain(p);
+ }
+ }
+
+ {
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockExperimentalVMOptions",
+ "-XX:+UseShenandoahGC",
+ "-Xlog:gc",
+ "-XX:+ExplicitGCInvokesConcurrent",
+ "-XX:ShenandoahGCHeuristics=traversal",
+ TestExplicitGC.class.getName(),
+ "test");
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+ for (String p : full) {
+ output.shouldNotContain(p);
+ }
+ for (String p : concNormal) {
+ output.shouldNotContain(p);
+ }
+ for (String p : concTraversal) {
+ output.shouldContain(p);
+ }
+ }
+
+ {
+ ProcessBuilder pb = ProcessTools.createJavaProcessBuilder(
+ "-XX:+UnlockExperimentalVMOptions",
+ "-XX:+UseShenandoahGC",
+ "-Xlog:gc",
+ "-XX:-ExplicitGCInvokesConcurrent",
+ TestExplicitGC.class.getName(),
+ "test");
+ OutputAnalyzer output = new OutputAnalyzer(pb.start());
+ for (String p : full) {
+ output.shouldContain(p);
+ }
+ for (String p : concNormal) {
+ output.shouldNotContain(p);
+ }
+ for (String p : concTraversal) {
+ output.shouldNotContain(p);
+ }
+ }
+ }
+}