Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/gc_implementation/g1/heapRegionSeq.inline.hpp@7383557659bd (annotated)
src/share/vm/gc_implementation/g1/heapRegionSeq.inline.hpp
Tue, 21 Aug 2012 14:10:39 -0700
- author
- johnc
- date
- Tue, 21 Aug 2012 14:10:39 -0700
- changeset 3998
- 7383557659bd
- parent 3713
- 720b6a76dd9d
- child 5773
- a19bea467577
- permissions
- -rw-r--r--
7185699: G1: Prediction model discrepancies
Summary: Correct the result value of G1CollectedHeap::pending_card_num(). Change the code that calculates the GC efficiency of a non-young heap region to use historical data from mixed GCs and the actual number of live bytes when predicting how long it would take to collect the region. Changes were also reviewed by Thomas Schatzl.
Reviewed-by: azeemj, brutisso
| ysr@777 | 1 | /* |
| tonyp@3713 | 2 | * Copyright (c) 2001, 2012, Oracle and/or its affiliates. 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 | * |
| trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
| trims@1907 | 21 | * questions. |
| ysr@777 | 22 | * |
| ysr@777 | 23 | */ |
| ysr@777 | 24 | |
| stefank@2314 | 25 | #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP |
| stefank@2314 | 26 | #define SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP |
| stefank@2314 | 27 | |
| tonyp@2963 | 28 | #include "gc_implementation/g1/heapRegion.hpp" |
| stefank@2314 | 29 | #include "gc_implementation/g1/heapRegionSeq.hpp" |
| stefank@2314 | 30 | |
| tonyp@3713 | 31 | inline uintx HeapRegionSeq::addr_to_index_biased(HeapWord* addr) const { |
| tonyp@2963 | 32 | assert(_heap_bottom <= addr && addr < _heap_end, |
| tonyp@2963 | 33 | err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT" end: "PTR_FORMAT, |
| tonyp@2963 | 34 | addr, _heap_bottom, _heap_end)); |
| tonyp@3713 | 35 | uintx index = (uintx) addr >> _region_shift; |
| tonyp@2963 | 36 | return index; |
| tonyp@2963 | 37 | } |
| tonyp@2963 | 38 | |
| tonyp@2963 | 39 | inline HeapRegion* HeapRegionSeq::addr_to_region_unsafe(HeapWord* addr) const { |
| tonyp@2963 | 40 | assert(_heap_bottom <= addr && addr < _heap_end, |
| tonyp@2963 | 41 | err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT" end: "PTR_FORMAT, |
| tonyp@2963 | 42 | addr, _heap_bottom, _heap_end)); |
| tonyp@3713 | 43 | uintx index_biased = addr_to_index_biased(addr); |
| tonyp@2963 | 44 | HeapRegion* hr = _regions_biased[index_biased]; |
| tonyp@2963 | 45 | assert(hr != NULL, "invariant"); |
| tonyp@2963 | 46 | return hr; |
| tonyp@2963 | 47 | } |
| tonyp@2963 | 48 | |
| tonyp@2963 | 49 | inline HeapRegion* HeapRegionSeq::addr_to_region(HeapWord* addr) const { |
| tonyp@2963 | 50 | if (addr != NULL && addr < _heap_end) { |
| tonyp@2963 | 51 | assert(addr >= _heap_bottom, |
| tonyp@2963 | 52 | err_msg("addr: "PTR_FORMAT" bottom: "PTR_FORMAT, addr, _heap_bottom)); |
| tonyp@2963 | 53 | return addr_to_region_unsafe(addr); |
| ysr@777 | 54 | } |
| ysr@777 | 55 | return NULL; |
| ysr@777 | 56 | } |
| stefank@2314 | 57 | |
| tonyp@3713 | 58 | inline HeapRegion* HeapRegionSeq::at(uint index) const { |
| tonyp@2963 | 59 | assert(index < length(), "pre-condition"); |
| tonyp@2963 | 60 | HeapRegion* hr = _regions[index]; |
| tonyp@2963 | 61 | assert(hr != NULL, "sanity"); |
| tonyp@2963 | 62 | assert(hr->hrs_index() == index, "sanity"); |
| tonyp@2963 | 63 | return hr; |
| tonyp@2963 | 64 | } |
| tonyp@2963 | 65 | |
| stefank@2314 | 66 | #endif // SHARE_VM_GC_IMPLEMENTATION_G1_HEAPREGIONSEQ_INLINE_HPP |
