Mercurial > hg > graal-jvmci-8
view src/share/vm/gc_implementation/g1/heapRegionSet.inline.hpp @ 6629:c9814fadeb38
7041879: G1: introduce stress testing parameter to cause frequent evacuation failures
Summary: Add the flags G1EvacuationFailureALot flag (and supporting flags) to force trigger evacuation failures. The support flags control how often to trigger an evacuation failure and during which types of evacuation pause. This functionality is analogous to that of PromotionFailureALot for the other collectors.
Reviewed-by: brutisso
author | johnc |
---|---|
date | Tue, 28 Aug 2012 15:20:08 -0700 |
parents | a2f7274eb6ef |
children | 992f62c457b0 58fc1b1523dc |
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/* * Copyright (c) 2011, 2012, 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. * */ #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP #include "gc_implementation/g1/heapRegionSet.hpp" //////////////////// HeapRegionSetBase //////////////////// inline void HeapRegionSetBase::update_for_addition(HeapRegion* hr) { // Assumes the caller has already verified the region. _length += 1; _region_num += hr->region_num(); _total_used_bytes += hr->used(); } inline void HeapRegionSetBase::add_internal(HeapRegion* hr) { hrs_assert_region_ok(this, hr, NULL); assert(hr->next() == NULL, hrs_ext_msg(this, "should not already be linked")); update_for_addition(hr); hr->set_containing_set(this); } inline void HeapRegionSetBase::update_for_removal(HeapRegion* hr) { // Assumes the caller has already verified the region. assert(_length > 0, hrs_ext_msg(this, "pre-condition")); _length -= 1; uint region_num_diff = hr->region_num(); assert(region_num_diff <= _region_num, hrs_err_msg("[%s] region's region num: %u " "should be <= region num: %u", name(), region_num_diff, _region_num)); _region_num -= region_num_diff; size_t used_bytes = hr->used(); assert(used_bytes <= _total_used_bytes, hrs_err_msg("[%s] region's used bytes: "SIZE_FORMAT" " "should be <= used bytes: "SIZE_FORMAT, name(), used_bytes, _total_used_bytes)); _total_used_bytes -= used_bytes; } inline void HeapRegionSetBase::remove_internal(HeapRegion* hr) { hrs_assert_region_ok(this, hr, this); assert(hr->next() == NULL, hrs_ext_msg(this, "should already be unlinked")); hr->set_containing_set(NULL); update_for_removal(hr); } //////////////////// HeapRegionSet //////////////////// inline void HeapRegionSet::add(HeapRegion* hr) { hrs_assert_mt_safety_ok(this); // add_internal() will verify the region. add_internal(hr); } inline void HeapRegionSet::remove(HeapRegion* hr) { hrs_assert_mt_safety_ok(this); // remove_internal() will verify the region. remove_internal(hr); } inline void HeapRegionSet::remove_with_proxy(HeapRegion* hr, HeapRegionSet* proxy_set) { // No need to fo the MT safety check here given that this method // does not update the contents of the set but instead accumulates // the changes in proxy_set which is assumed to be thread-local. hrs_assert_sets_match(this, proxy_set); hrs_assert_region_ok(this, hr, this); hr->set_containing_set(NULL); proxy_set->update_for_addition(hr); } //////////////////// HeapRegionLinkedList //////////////////// inline void HeapRegionLinkedList::add_as_head(HeapRegion* hr) { hrs_assert_mt_safety_ok(this); assert((length() == 0 && _head == NULL && _tail == NULL) || (length() > 0 && _head != NULL && _tail != NULL), hrs_ext_msg(this, "invariant")); // add_internal() will verify the region. add_internal(hr); // Now link the region. if (_head != NULL) { hr->set_next(_head); } else { _tail = hr; } _head = hr; } inline void HeapRegionLinkedList::add_as_tail(HeapRegion* hr) { hrs_assert_mt_safety_ok(this); assert((length() == 0 && _head == NULL && _tail == NULL) || (length() > 0 && _head != NULL && _tail != NULL), hrs_ext_msg(this, "invariant")); // add_internal() will verify the region. add_internal(hr); // Now link the region. if (_tail != NULL) { _tail->set_next(hr); } else { _head = hr; } _tail = hr; } inline HeapRegion* HeapRegionLinkedList::remove_head() { hrs_assert_mt_safety_ok(this); assert(!is_empty(), hrs_ext_msg(this, "the list should not be empty")); assert(length() > 0 && _head != NULL && _tail != NULL, hrs_ext_msg(this, "invariant")); // We need to unlink it first. HeapRegion* hr = _head; _head = hr->next(); if (_head == NULL) { _tail = NULL; } hr->set_next(NULL); // remove_internal() will verify the region. remove_internal(hr); return hr; } inline HeapRegion* HeapRegionLinkedList::remove_head_or_null() { hrs_assert_mt_safety_ok(this); if (!is_empty()) { return remove_head(); } else { return NULL; } } #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSET_INLINE_HPP