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8289740: Add verification testing during all concurrent phases in G1
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Reviewed-by: iwalulya, ayang
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Thomas Schatzl committed Jul 8, 2022
1 parent ac399e9 commit 1b8f466
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100 changes: 100 additions & 0 deletions test/hotspot/jtreg/gc/g1/TestVerificationInConcurrentCycle.java
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/*
* Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* 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.
*/

package gc.g1;

/*
* @test TestVerificationInConcurrentCycle
* @requires vm.gc.G1
* @summary Basic testing of various GC pause verification during the G1 concurrent cycle.
* @library /test/lib
* @build sun.hotspot.WhiteBox
* @run driver jdk.test.lib.helpers.ClassFileInstaller sun.hotspot.WhiteBox
* @run main/othervm
* -Xbootclasspath/a:.
* -XX:+UnlockDiagnosticVMOptions -XX:+WhiteBoxAPI
* -XX:+VerifyBeforeGC -XX:+VerifyDuringGC -XX:+VerifyAfterGC
* -XX:+G1VerifyBitmaps -XX:+G1VerifyRSetsDuringFullGC -XX:+G1VerifyHeapRegionCodeRoots
* -XX:+VerifyRememberedSets -XX:+VerifyObjectStartArray
* gc.g1.TestVerificationInConcurrentCycle
*/

import sun.hotspot.WhiteBox;
import sun.hotspot.gc.GC;

public class TestVerificationInConcurrentCycle {

private static final WhiteBox WB = WhiteBox.getWhiteBox();

// All testN() assume initial state is idle, and restore that state.

private static void testFullGCAt(String at) throws Exception {
System.out.println("testSimpleCycle");
try {
// Run one cycle.
WB.concurrentGCRunTo(at);
WB.fullGC();
} finally {
WB.concurrentGCRunToIdle();
}
}

private static void testYoungGCAt(String at) throws Exception {
System.out.println("testSimpleCycle");
try {
// Run one cycle.
WB.concurrentGCRunTo(at);
WB.youngGC();
} finally {
WB.concurrentGCRunToIdle();
}
}

private static void testGCAt(String at) throws Exception {
testYoungGCAt(at);
testFullGCAt(at);
}

private static void test() throws Exception {
try {
System.out.println("taking control");
WB.concurrentGCAcquireControl();
testGCAt(WB.AFTER_MARKING_STARTED);
testGCAt(WB.BEFORE_MARKING_COMPLETED);
testGCAt(WB.G1_AFTER_REBUILD_STARTED);
testGCAt(WB.G1_BEFORE_REBUILD_COMPLETED);
testGCAt(WB.G1_AFTER_CLEANUP_STARTED);
testGCAt(WB.G1_BEFORE_CLEANUP_COMPLETED);
} finally {
System.out.println("releasing control");
WB.concurrentGCReleaseControl();
}
}

public static void main(String[] args) throws Exception {
if (!WB.supportsConcurrentGCBreakpoints()) {
throw new RuntimeException("G1 should support GC breakpoints");
}
test();
}
}

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