1 /*
2 * Copyright (c) 2005, 2014, 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 *
188 }
189
190 void VM_GenCollectFull::doit() {
191 SvcGCMarker sgcm(SvcGCMarker::FULL);
192
193 GenCollectedHeap* gch = GenCollectedHeap::heap();
194 GCCauseSetter gccs(gch, _gc_cause);
195 gch->do_full_collection(gch->must_clear_all_soft_refs(), _max_level);
196 }
197
198 // Returns true iff concurrent GCs unloads metadata.
199 bool VM_CollectForMetadataAllocation::initiate_concurrent_GC() {
200 #if INCLUDE_ALL_GCS
201 if (UseConcMarkSweepGC && CMSClassUnloadingEnabled) {
202 MetaspaceGC::set_should_concurrent_collect(true);
203 return true;
204 }
205
206 if (UseG1GC && ClassUnloadingWithConcurrentMark) {
207 G1CollectedHeap* g1h = G1CollectedHeap::heap();
208 g1h->g1_policy()->set_initiate_conc_mark_if_possible();
209
210 GCCauseSetter x(g1h, _gc_cause);
211
212 // At this point we are supposed to start a concurrent cycle. We
213 // will do so if one is not already in progress.
214 bool should_start = g1h->g1_policy()->force_initial_mark_if_outside_cycle(_gc_cause);
215
216 if (should_start) {
217 double pause_target = g1h->g1_policy()->max_pause_time_ms();
218 g1h->do_collection_pause_at_safepoint(pause_target);
219 }
220 return true;
221 }
222 #endif
223
224 return false;
225 }
226
227 static void log_metaspace_alloc_failure_for_concurrent_GC() {
228 if (Verbose && PrintGCDetails) {
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1 /*
2 * Copyright (c) 2005, 2015, 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 *
188 }
189
190 void VM_GenCollectFull::doit() {
191 SvcGCMarker sgcm(SvcGCMarker::FULL);
192
193 GenCollectedHeap* gch = GenCollectedHeap::heap();
194 GCCauseSetter gccs(gch, _gc_cause);
195 gch->do_full_collection(gch->must_clear_all_soft_refs(), _max_level);
196 }
197
198 // Returns true iff concurrent GCs unloads metadata.
199 bool VM_CollectForMetadataAllocation::initiate_concurrent_GC() {
200 #if INCLUDE_ALL_GCS
201 if (UseConcMarkSweepGC && CMSClassUnloadingEnabled) {
202 MetaspaceGC::set_should_concurrent_collect(true);
203 return true;
204 }
205
206 if (UseG1GC && ClassUnloadingWithConcurrentMark) {
207 G1CollectedHeap* g1h = G1CollectedHeap::heap();
208 g1h->g1_policy()->collector_state()->set_initiate_conc_mark_if_possible(true);
209
210 GCCauseSetter x(g1h, _gc_cause);
211
212 // At this point we are supposed to start a concurrent cycle. We
213 // will do so if one is not already in progress.
214 bool should_start = g1h->g1_policy()->force_initial_mark_if_outside_cycle(_gc_cause);
215
216 if (should_start) {
217 double pause_target = g1h->g1_policy()->max_pause_time_ms();
218 g1h->do_collection_pause_at_safepoint(pause_target);
219 }
220 return true;
221 }
222 #endif
223
224 return false;
225 }
226
227 static void log_metaspace_alloc_failure_for_concurrent_GC() {
228 if (Verbose && PrintGCDetails) {
|