Mercurial > hg > graal-compiler
view src/share/vm/oops/methodDataKlass.cpp @ 2149:7e37af9d69ef
7011379: G1: overly long concurrent marking cycles
Summary: This changeset introduces filtering of SATB buffers at the point when they are about to be enqueued. If this filtering clears enough entries on each buffer, the buffer can then be re-used and not enqueued. This cuts down the number of SATB buffers that need to be processed by the concurrent marking threads.
Reviewed-by: johnc, ysr
author | tonyp |
---|---|
date | Wed, 19 Jan 2011 09:35:17 -0500 |
parents | f95d63e2154a |
children | e5383553fd4e |
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/* * Copyright (c) 2000, 2010, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "precompiled.hpp" #include "gc_implementation/shared/markSweep.inline.hpp" #include "gc_interface/collectedHeap.inline.hpp" #include "memory/gcLocker.hpp" #include "memory/resourceArea.hpp" #include "memory/universe.inline.hpp" #include "oops/klassOop.hpp" #include "oops/methodDataKlass.hpp" #include "oops/methodDataOop.hpp" #include "oops/oop.inline.hpp" #include "oops/oop.inline2.hpp" #include "runtime/handles.inline.hpp" #ifndef SERIALGC #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" #include "oops/oop.pcgc.inline.hpp" #endif klassOop methodDataKlass::create_klass(TRAPS) { methodDataKlass o; KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); // Make sure size calculation is right assert(k()->size() == align_object_size(header_size()), "wrong size for object"); return k(); } int methodDataKlass::oop_size(oop obj) const { assert(obj->is_methodData(), "must be method data oop"); return methodDataOop(obj)->object_size(); } bool methodDataKlass::oop_is_parsable(oop obj) const { assert(obj->is_methodData(), "must be method data oop"); return methodDataOop(obj)->object_is_parsable(); } methodDataOop methodDataKlass::allocate(methodHandle method, TRAPS) { int size = methodDataOopDesc::compute_allocation_size_in_words(method); KlassHandle h_k(THREAD, as_klassOop()); methodDataOop mdo = (methodDataOop)CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL); assert(!mdo->is_parsable(), "not expecting parsability yet."); No_Safepoint_Verifier no_safepoint; // init function atomic wrt GC mdo->initialize(method); assert(mdo->is_parsable(), "should be parsable here."); assert(size == mdo->object_size(), "wrong size for methodDataOop"); return mdo; } void methodDataKlass::oop_follow_contents(oop obj) { assert (obj->is_methodData(), "object must be method data"); methodDataOop m = methodDataOop(obj); obj->follow_header(); MarkSweep::mark_and_push(m->adr_method()); ResourceMark rm; for (ProfileData* data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { data->follow_contents(); } } #ifndef SERIALGC void methodDataKlass::oop_follow_contents(ParCompactionManager* cm, oop obj) { assert (obj->is_methodData(), "object must be method data"); methodDataOop m = methodDataOop(obj); obj->follow_header(cm); PSParallelCompact::mark_and_push(cm, m->adr_method()); ResourceMark rm; for (ProfileData* data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { data->follow_contents(cm); } } #endif // SERIALGC int methodDataKlass::oop_oop_iterate(oop obj, OopClosure* blk) { assert (obj->is_methodData(), "object must be method data"); methodDataOop m = methodDataOop(obj); // Get size before changing pointers // Don't call size() or oop_size() since that is a virtual call. int size = m->object_size(); obj->oop_iterate_header(blk); blk->do_oop(m->adr_method()); ResourceMark rm; for (ProfileData* data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { data->oop_iterate(blk); } return size; } int methodDataKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { assert (obj->is_methodData(), "object must be method data"); methodDataOop m = methodDataOop(obj); // Get size before changing pointers // Don't call size() or oop_size() since that is a virtual call. int size = m->object_size(); obj->oop_iterate_header(blk, mr); oop* adr = m->adr_method(); if (mr.contains(adr)) { blk->do_oop(m->adr_method()); } ResourceMark rm; for (ProfileData* data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { data->oop_iterate_m(blk, mr); } return size; } int methodDataKlass::oop_adjust_pointers(oop obj) { assert(obj->is_methodData(), "should be method data"); methodDataOop m = methodDataOop(obj); // Get size before changing pointers // Don't call size() or oop_size() since that is a virtual call. int size = m->object_size(); obj->adjust_header(); MarkSweep::adjust_pointer(m->adr_method()); ResourceMark rm; ProfileData* data; for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { data->adjust_pointers(); } return size; } #ifndef SERIALGC void methodDataKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { assert (obj->is_methodData(), "object must be method data"); methodDataOop m = methodDataOop(obj); // This should never point into the young gen. assert(!PSScavenge::should_scavenge(m->adr_method()), "Sanity"); } int methodDataKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { assert(obj->is_methodData(), "should be method data"); methodDataOop m = methodDataOop(obj); PSParallelCompact::adjust_pointer(m->adr_method()); ResourceMark rm; ProfileData* data; for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { data->update_pointers(); } return m->object_size(); } int methodDataKlass::oop_update_pointers(ParCompactionManager* cm, oop obj, HeapWord* beg_addr, HeapWord* end_addr) { assert(obj->is_methodData(), "should be method data"); oop* p; methodDataOop m = methodDataOop(obj); p = m->adr_method(); PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); ResourceMark rm; ProfileData* data; for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { data->update_pointers(beg_addr, end_addr); } return m->object_size(); } #endif // SERIALGC #ifndef PRODUCT // Printing void methodDataKlass::oop_print_on(oop obj, outputStream* st) { assert(obj->is_methodData(), "should be method data"); methodDataOop m = methodDataOop(obj); st->print("method data for "); m->method()->print_value_on(st); st->cr(); m->print_data_on(st); } #endif //PRODUCT void methodDataKlass::oop_print_value_on(oop obj, outputStream* st) { assert(obj->is_methodData(), "should be method data"); methodDataOop m = methodDataOop(obj); st->print("method data for "); m->method()->print_value_on(st); } const char* methodDataKlass::internal_name() const { return "{method data}"; } // Verification void methodDataKlass::oop_verify_on(oop obj, outputStream* st) { Klass::oop_verify_on(obj, st); guarantee(obj->is_methodData(), "object must be method data"); methodDataOop m = methodDataOop(obj); guarantee(m->is_perm(), "should be in permspace"); m->verify_data_on(st); }