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src/share/vm/gc_implementation/g1/vm_operations_g1.cpp@58054a18d735 (annotated)

src/share/vm/gc_implementation/g1/vm_operations_g1.cpp

Fri, 06 Feb 2009 01:38:50 +0300

author

apetrusenko

date

Fri, 06 Feb 2009 01:38:50 +0300

changeset 980

58054a18d735

parent 777

37f87013dfd8

child 1112

96b229c54d1e

permissions

-rw-r--r--

6484959: G1: introduce survivor spaces
6797754: G1: combined bugfix
Summary: Implemented a policy to control G1 survivor space parameters.
Reviewed-by: tonyp, iveresov

ysr@777	1	/*
ysr@777	2	* Copyright 2001-2007 Sun Microsystems, Inc. All Rights Reserved.
ysr@777	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
ysr@777	4	*
ysr@777	5	* This code is free software; you can redistribute it and/or modify it
ysr@777	6	* under the terms of the GNU General Public License version 2 only, as
ysr@777	7	* published by the Free Software Foundation.
ysr@777	8	*
ysr@777	9	* This code is distributed in the hope that it will be useful, but WITHOUT
ysr@777	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
ysr@777	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
ysr@777	12	* version 2 for more details (a copy is included in the LICENSE file that
ysr@777	13	* accompanied this code).
ysr@777	14	*
ysr@777	15	* You should have received a copy of the GNU General Public License version
ysr@777	16	* 2 along with this work; if not, write to the Free Software Foundation,
ysr@777	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
ysr@777	18	*
ysr@777	19	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
ysr@777	20	* CA 95054 USA or visit www.sun.com if you need additional information or
ysr@777	21	* have any questions.
ysr@777	22	*
ysr@777	23	*/
ysr@777	24
ysr@777	25	#include "incls/_precompiled.incl"
ysr@777	26	#include "incls/_vm_operations_g1.cpp.incl"
ysr@777	27
ysr@777	28	void VM_G1CollectForAllocation::doit() {
ysr@777	29	JvmtiGCForAllocationMarker jgcm;
ysr@777	30	G1CollectedHeap* g1h = G1CollectedHeap::heap();
ysr@777	31	_res = g1h->satisfy_failed_allocation(_size);
ysr@777	32	assert(g1h->is_in_or_null(_res), "result not in heap");
ysr@777	33	}
ysr@777	34
ysr@777	35	void VM_G1CollectFull::doit() {
ysr@777	36	JvmtiGCFullMarker jgcm;
ysr@777	37	G1CollectedHeap* g1h = G1CollectedHeap::heap();
ysr@777	38	GCCauseSetter x(g1h, _gc_cause);
ysr@777	39	g1h->do_full_collection(false /* clear_all_soft_refs */);
ysr@777	40	}
ysr@777	41
ysr@777	42	void VM_G1IncCollectionPause::doit() {
ysr@777	43	JvmtiGCForAllocationMarker jgcm;
ysr@777	44	G1CollectedHeap* g1h = G1CollectedHeap::heap();
ysr@777	45	GCCauseSetter x(g1h, GCCause::_g1_inc_collection_pause);
ysr@777	46	g1h->do_collection_pause_at_safepoint(NULL);
ysr@777	47	}
ysr@777	48
ysr@777	49	void VM_G1PopRegionCollectionPause::doit() {
ysr@777	50	JvmtiGCForAllocationMarker jgcm;
ysr@777	51	G1CollectedHeap* g1h = G1CollectedHeap::heap();
ysr@777	52	g1h->do_collection_pause_at_safepoint(_pop_region);
ysr@777	53	}
ysr@777	54
ysr@777	55
ysr@777	56	void VM_CGC_Operation::doit() {
ysr@777	57	gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps);
ysr@777	58	TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty);
ysr@777	59	TraceTime t(_printGCMessage, PrintGC, true, gclog_or_tty);
ysr@777	60	SharedHeap* sh = SharedHeap::heap();
ysr@777	61	// This could go away if CollectedHeap gave access to _gc_is_active...
ysr@777	62	if (sh != NULL) {
ysr@777	63	IsGCActiveMark x;
ysr@777	64	_cl->do_void();
ysr@777	65	} else {
ysr@777	66	_cl->do_void();
ysr@777	67	}
ysr@777	68	}
ysr@777	69
ysr@777	70	bool VM_CGC_Operation::doit_prologue() {
ysr@777	71	Heap_lock->lock();
ysr@777	72	SharedHeap::heap()->_thread_holds_heap_lock_for_gc = true;
ysr@777	73	return true;
ysr@777	74	}
ysr@777	75
ysr@777	76	void VM_CGC_Operation::doit_epilogue() {
ysr@777	77	SharedHeap::heap()->_thread_holds_heap_lock_for_gc = false;
ysr@777	78	Heap_lock->unlock();
ysr@777	79	}