Mercurial > jdk8-mips64-public > hotspot / file comparison
comparison: src/share/vm/utilities/histogram.cpp
src/share/vm/utilities/histogram.cpp
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- f90c822e73f8
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| 1 /* | |
| 2 * Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved. | |
| 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 * | |
| 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | |
| 20 * or visit www.oracle.com if you need additional information or have any | |
| 21 * questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 #include "precompiled.hpp" | |
| 26 #include "oops/oop.inline.hpp" | |
| 27 #include "utilities/histogram.hpp" | |
| 28 | |
| 29 #ifdef ASSERT | |
| 30 | |
| 31 ////////////////// HistogramElement //////////////////////// | |
| 32 | |
| 33 HistogramElement::HistogramElement() { | |
| 34 _count = 0; | |
| 35 } | |
| 36 | |
| 37 int HistogramElement::count() { | |
| 38 return _count; | |
| 39 } | |
| 40 | |
| 41 const char* HistogramElement::name() { | |
| 42 return _name; | |
| 43 } | |
| 44 | |
| 45 void HistogramElement::increment_count() { | |
| 46 // We can't use the accessor :-(. | |
| 47 Atomic::inc(&_count); | |
| 48 } | |
| 49 | |
| 50 int HistogramElement::compare(HistogramElement* e1,HistogramElement* e2) { | |
| 51 if(e1->count() > e2->count()) { | |
| 52 return -1; | |
| 53 } else if(e1->count() < e2->count()) { | |
| 54 return 1; | |
| 55 } | |
| 56 return 0; | |
| 57 } | |
| 58 | |
| 59 void HistogramElement::print_on(outputStream* st) const { | |
| 60 st->print("%10d ",((HistogramElement*)this)->count()); | |
| 61 st->print_cr("%s",((HistogramElement*)this)->name()); | |
| 62 } | |
| 63 | |
| 64 ////////////////// Histogram //////////////////////// | |
| 65 | |
| 66 int Histogram::sort_helper(HistogramElement** e1, HistogramElement** e2) { | |
| 67 return (*e1)->compare(*e1,*e2); | |
| 68 } | |
| 69 | |
| 70 Histogram::Histogram(const char* title,int estimatedCount) { | |
| 71 _title = title; | |
| 72 _elements = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<HistogramElement*>(estimatedCount,true); | |
| 73 } | |
| 74 | |
| 75 void Histogram::add_element(HistogramElement* element) { | |
| 76 // Note, we need to add locking ! | |
| 77 elements()->append(element); | |
| 78 } | |
| 79 | |
| 80 void Histogram::print_header(outputStream* st) { | |
| 81 st->print_cr("%s",title()); | |
| 82 st->print_cr("--------------------------------------------------"); | |
| 83 } | |
| 84 | |
| 85 void Histogram::print_elements(outputStream* st) { | |
| 86 elements()->sort(Histogram::sort_helper); | |
| 87 jint total = 0; | |
| 88 for(int i=0; i < elements()->length(); i++) { | |
| 89 elements()->at(i)->print(); | |
| 90 total += elements()->at(i)->count(); | |
| 91 } | |
| 92 st->print("%10d ", total); | |
| 93 st->print_cr("Total"); | |
| 94 } | |
| 95 | |
| 96 void Histogram::print_on(outputStream* st) const { | |
| 97 ((Histogram*)this)->print_header(st); | |
| 98 ((Histogram*)this)->print_elements(st); | |
| 99 } | |
| 100 | |
| 101 #endif |
