c30aef79df
In general maintain remembered sets of old regions only from the start of the concurrent cycle to the mixed gc they are used, at most until the end of the mixed phase. Reviewed-by: sjohanss, sangheki
80 lines
3.1 KiB
Java
80 lines
3.1 KiB
Java
/*
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* Copyright (c) 2017, 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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* @test TestConcurrentPhaseControlG1
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* @bug 8169517
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* @requires vm.gc.G1
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* @summary Test of WhiteBox concurrent GC phase control for G1.
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* @key gc
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* @modules java.base
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* @library /test/lib /
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* @build sun.hotspot.WhiteBox
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* @run driver ClassFileInstaller sun.hotspot.WhiteBox
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* sun.hotspot.WhiteBox$WhiteBoxPermission
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* @run driver TestConcurrentPhaseControlG1
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*/
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import gc.concurrent_phase_control.CheckControl;
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public class TestConcurrentPhaseControlG1 {
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// Pairs of phase name and regex to match log stringm for stepping through,
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private static final String[][] g1PhaseInfo = {
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// Step through the phases in order.
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{"IDLE", null},
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{"CONCURRENT_CYCLE", "Concurrent Cycle"},
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{"IDLE", null}, // Resume IDLE before testing subphases
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{"CLEAR_CLAIMED_MARKS", "Concurrent Clear Claimed Marks"},
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{"SCAN_ROOT_REGIONS", "Concurrent Scan Root Regions"},
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// ^F so not "From Roots", ^R so not "Restart"
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{"CONCURRENT_MARK", "Concurrent Mark [^FR]"},
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{"IDLE", null}, // Resume IDLE before testing subphases
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{"MARK_FROM_ROOTS", "Concurrent Mark From Roots"},
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{"BEFORE_REMARK", null},
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{"REMARK", "Pause Remark"},
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{"REBUILD_REMEMBERED_SETS", "Concurrent Rebuild Remembered Sets"},
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// "COMPLETE_CLEANUP", -- optional phase, not reached by this test
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{"CLEANUP_FOR_NEXT_MARK", "Concurrent Cleanup for Next Mark"},
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// Clear request
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{"IDLE", null},
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{"ANY", null},
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// Request a phase.
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{"MARK_FROM_ROOTS", "Concurrent Mark From Roots"},
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// Request an earlier phase, to ensure loop rather than stuck at idle.
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{"SCAN_ROOT_REGIONS", "Concurrent Scan Root Regions"},
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// Clear request, to unblock service.
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{"IDLE", null},
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{"ANY", null},
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};
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private static final String[] g1Options =
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new String[]{"-XX:+UseG1GC", "-Xlog:gc,gc+marking"};
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private static final String g1Name = "G1";
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public static void main(String[] args) throws Exception {
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CheckControl.check(g1Name, g1Options, g1PhaseInfo);
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}
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}
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