Mercurial > hg > graal-jvmci-8
view src/share/vm/memory/barrierSet.inline.hpp @ 1088:3fc996d4edd2
6902303: G1: ScavengeALot should cause an incremental, rather than a full, collection
Summary: ScavengeALot now causes an incremental (but possibly partially young, in the G1 sense) collection. Some such collections may be abandoned on account of MMU specs. Band-aided a native leak associated with abandoned pauses, as well as an MMU tracker overflow related to frequent scavenge events in the face of a large MMU denominator interval; the latter is protected by a product flag that defaults to false.
Reviewed-by: tonyp
author | ysr |
---|---|
date | Thu, 19 Nov 2009 13:43:25 -0800 |
parents | df6caf649ff7 |
children | 6aa7255741f3 |
line wrap: on
line source
/* * Copyright 2001-2008 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. * */ // Inline functions of BarrierSet, which de-virtualize certain // performance-critical calls when the barrier is the most common // card-table kind. template <class T> void BarrierSet::write_ref_field_pre(T* field, oop new_val) { if (kind() == CardTableModRef) { ((CardTableModRefBS*)this)->inline_write_ref_field_pre(field, new_val); } else { write_ref_field_pre_work(field, new_val); } } void BarrierSet::write_ref_field(void* field, oop new_val) { if (kind() == CardTableModRef) { ((CardTableModRefBS*)this)->inline_write_ref_field(field, new_val); } else { write_ref_field_work(field, new_val); } } void BarrierSet::write_ref_array(MemRegion mr) { if (kind() == CardTableModRef) { ((CardTableModRefBS*)this)->inline_write_ref_array(mr); } else { write_ref_array_work(mr); } } void BarrierSet::write_region(MemRegion mr) { if (kind() == CardTableModRef) { ((CardTableModRefBS*)this)->inline_write_region(mr); } else { write_region_work(mr); } }