Mercurial > hg > graal-jvmci-8
view src/share/vm/gc_implementation/g1/vm_operations_g1.cpp @ 1394:1316cec51b4d
6819061: G1: eliminate serial Other times that are proportional to the collection set length
6871109: G1: remove the concept of the scan only prefix
Summary: Removed scan only regions and associated code. The young portion of the collection set is now constructed incrementally - when a young region is retired as the current allocation region it is added to the collection set.
Reviewed-by: apetrusenko, iveresov, tonyp
author | johnc |
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date | Thu, 22 Apr 2010 10:02:38 -0700 |
parents | 3fc996d4edd2 |
children | c18cbe5936b8 |
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/* * Copyright 2001-2009 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ #include "incls/_precompiled.incl" #include "incls/_vm_operations_g1.cpp.incl" void VM_G1CollectForAllocation::doit() { JvmtiGCForAllocationMarker jgcm; G1CollectedHeap* g1h = G1CollectedHeap::heap(); _res = g1h->satisfy_failed_allocation(_size); assert(g1h->is_in_or_null(_res), "result not in heap"); } void VM_G1CollectFull::doit() { JvmtiGCFullMarker jgcm; G1CollectedHeap* g1h = G1CollectedHeap::heap(); GCCauseSetter x(g1h, _gc_cause); g1h->do_full_collection(false /* clear_all_soft_refs */); } void VM_G1IncCollectionPause::doit() { JvmtiGCForAllocationMarker jgcm; G1CollectedHeap* g1h = G1CollectedHeap::heap(); GCCauseSetter x(g1h, _gc_cause); g1h->do_collection_pause_at_safepoint(); } void VM_CGC_Operation::doit() { gclog_or_tty->date_stamp(PrintGC && PrintGCDateStamps); TraceCPUTime tcpu(PrintGCDetails, true, gclog_or_tty); TraceTime t(_printGCMessage, PrintGC, true, gclog_or_tty); SharedHeap* sh = SharedHeap::heap(); // This could go away if CollectedHeap gave access to _gc_is_active... if (sh != NULL) { IsGCActiveMark x; _cl->do_void(); } else { _cl->do_void(); } } bool VM_CGC_Operation::doit_prologue() { Heap_lock->lock(); SharedHeap::heap()->_thread_holds_heap_lock_for_gc = true; return true; } void VM_CGC_Operation::doit_epilogue() { SharedHeap::heap()->_thread_holds_heap_lock_for_gc = false; Heap_lock->unlock(); }