Mercurial > hg > truffle
annotate src/share/vm/utilities/intHisto.cpp @ 8733:9def4075da6d
8008079: G1: Add nextObject routine to CMBitMapRO and replace nextWord
Summary: Update the task local finger to the start of the next object when marking aborts, in order to avoid the redundant scanning of all 0's when the marking task restarts, if otherwise updating to the next word. In addition, reuse the routine nextObject() in routine iterate().
Reviewed-by: johnc, ysr
Contributed-by: tamao <tao.mao@oracle.com>
| author | tamao |
|---|---|
| date | Tue, 05 Mar 2013 15:36:56 -0800 |
| parents | b9a9ed0f8eeb |
| children |
| rev | line source |
|---|---|
| 342 | 1 /* |
|
6842
b9a9ed0f8eeb
7197424: update copyright year to match last edit in jdk8 hotspot repository
mikael
parents:
6197
diff
changeset
|
2 * Copyright (c) 2001, 2012, Oracle and/or its affiliates. All rights reserved. |
| 342 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
342
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
342
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
342
diff
changeset
|
21 * questions. |
| 342 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "utilities/intHisto.hpp" | |
| 342 | 27 |
| 28 IntHistogram::IntHistogram(int est, int max) : _max(max), _tot(0) { | |
| 29 assert(0 <= est && est <= max, "Preconditions"); | |
| 6197 | 30 _elements = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<int>(est, true); |
| 342 | 31 guarantee(_elements != NULL, "alloc failure"); |
| 32 } | |
| 33 | |
| 34 void IntHistogram::add_entry(int outcome) { | |
| 35 if (outcome > _max) outcome = _max; | |
| 36 int new_count = _elements->at_grow(outcome) + 1; | |
| 37 _elements->at_put(outcome, new_count); | |
| 38 _tot++; | |
| 39 } | |
| 40 | |
| 41 int IntHistogram::entries_for_outcome(int outcome) { | |
| 42 return _elements->at_grow(outcome); | |
| 43 } | |
| 44 | |
| 45 void IntHistogram::print_on(outputStream* st) const { | |
| 46 double tot_d = (double)_tot; | |
| 47 st->print_cr("Outcome # of occurrences %% of occurrences"); | |
| 48 st->print_cr("-----------------------------------------------"); | |
| 49 for (int i=0; i < _elements->length()-2; i++) { | |
| 50 int cnt = _elements->at(i); | |
| 51 if (cnt != 0) { | |
| 52 st->print_cr("%7d %10d %8.4f", | |
| 53 i, cnt, (double)cnt/tot_d); | |
| 54 } | |
| 55 } | |
| 56 // Does it have any max entries? | |
| 57 if (_elements->length()-1 == _max) { | |
| 58 int cnt = _elements->at(_max); | |
| 59 st->print_cr(">= %4d %10d %8.4f", | |
| 60 _max, cnt, (double)cnt/tot_d); | |
| 61 } | |
| 62 st->print_cr("-----------------------------------------------"); | |
| 63 st->print_cr(" All %10d %8.4f", _tot, 1.0); | |
| 64 } |