1 /*
2 * Copyright (c) 2001, 2017, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
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 *
5534 startTimer();
5535 }
5536 curAddr = chunk.end();
5537 }
5538 // A successful mostly concurrent collection has been done.
5539 // Because only the full (i.e., concurrent mode failure) collections
5540 // are being measured for gc overhead limits, clean the "near" flag
5541 // and count.
5542 size_policy()->reset_gc_overhead_limit_count();
5543 _collectorState = Idling;
5544 }
5545
5546 register_gc_end();
5547 }
5548
5549 // Same as above but for STW paths
5550 void CMSCollector::reset_stw() {
5551 // already have the lock
5552 assert(_collectorState == Resetting, "just checking");
5553 assert_lock_strong(bitMapLock());
5554 GCIdMarkAndRestore gc_id_mark(_cmsThread->gc_id());
5555 _markBitMap.clear_all();
5556 _collectorState = Idling;
5557 register_gc_end();
5558 }
5559
5560 void CMSCollector::do_CMS_operation(CMS_op_type op, GCCause::Cause gc_cause) {
5561 GCTraceCPUTime tcpu;
5562 TraceCollectorStats tcs(counters());
5563
5564 switch (op) {
5565 case CMS_op_checkpointRootsInitial: {
5566 GCTraceTime(Info, gc) t("Pause Initial Mark", NULL, GCCause::_no_gc, true);
5567 SvcGCMarker sgcm(SvcGCMarker::OTHER);
5568 checkpointRootsInitial();
5569 break;
5570 }
5571 case CMS_op_checkpointRootsFinal: {
5572 GCTraceTime(Info, gc) t("Pause Remark", NULL, GCCause::_no_gc, true);
5573 SvcGCMarker sgcm(SvcGCMarker::OTHER);
5574 checkpointRootsFinal();
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1 /*
2 * Copyright (c) 2001, 2018, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
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 *
5534 startTimer();
5535 }
5536 curAddr = chunk.end();
5537 }
5538 // A successful mostly concurrent collection has been done.
5539 // Because only the full (i.e., concurrent mode failure) collections
5540 // are being measured for gc overhead limits, clean the "near" flag
5541 // and count.
5542 size_policy()->reset_gc_overhead_limit_count();
5543 _collectorState = Idling;
5544 }
5545
5546 register_gc_end();
5547 }
5548
5549 // Same as above but for STW paths
5550 void CMSCollector::reset_stw() {
5551 // already have the lock
5552 assert(_collectorState == Resetting, "just checking");
5553 assert_lock_strong(bitMapLock());
5554 GCIdMark gc_id_mark(_cmsThread->gc_id());
5555 _markBitMap.clear_all();
5556 _collectorState = Idling;
5557 register_gc_end();
5558 }
5559
5560 void CMSCollector::do_CMS_operation(CMS_op_type op, GCCause::Cause gc_cause) {
5561 GCTraceCPUTime tcpu;
5562 TraceCollectorStats tcs(counters());
5563
5564 switch (op) {
5565 case CMS_op_checkpointRootsInitial: {
5566 GCTraceTime(Info, gc) t("Pause Initial Mark", NULL, GCCause::_no_gc, true);
5567 SvcGCMarker sgcm(SvcGCMarker::OTHER);
5568 checkpointRootsInitial();
5569 break;
5570 }
5571 case CMS_op_checkpointRootsFinal: {
5572 GCTraceTime(Info, gc) t("Pause Remark", NULL, GCCause::_no_gc, true);
5573 SvcGCMarker sgcm(SvcGCMarker::OTHER);
5574 checkpointRootsFinal();
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