• file
• revisions
• annotate
• diff
• comparison
• raw

src/share/vm/utilities/histogram.cpp@de88570fabfc (annotated)

src/share/vm/utilities/histogram.cpp

Wed, 11 Sep 2013 00:38:18 -0400

author

dholmes

date

Wed, 11 Sep 2013 00:38:18 -0400

changeset 5689

de88570fabfc

parent 4153

b9a9ed0f8eeb

child 6876

710a3c8b516e

permissions

-rw-r--r--

8024256: Minimal VM build is broken with PCH disabled
Reviewed-by: coleenp, twisti

duke@435	1	/*
mikael@4153	2	* Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
duke@435	3	* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435	4	*
duke@435	5	* This code is free software; you can redistribute it and/or modify it
duke@435	6	* under the terms of the GNU General Public License version 2 only, as
duke@435	7	* published by the Free Software Foundation.
duke@435	8	*
duke@435	9	* This code is distributed in the hope that it will be useful, but WITHOUT
duke@435	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
duke@435	12	* version 2 for more details (a copy is included in the LICENSE file that
duke@435	13	* accompanied this code).
duke@435	14	*
duke@435	15	* You should have received a copy of the GNU General Public License version
duke@435	16	* 2 along with this work; if not, write to the Free Software Foundation,
duke@435	17	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435	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.
duke@435	22	*
duke@435	23	*/
duke@435	24
stefank@2314	25	#include "precompiled.hpp"
stefank@2314	26	#include "oops/oop.inline.hpp"
stefank@2314	27	#include "utilities/histogram.hpp"
duke@435	28
duke@435	29	#ifdef ASSERT
duke@435	30
duke@435	31	////////////////// HistogramElement ////////////////////////
duke@435	32
duke@435	33	HistogramElement::HistogramElement() {
duke@435	34	_count = 0;
duke@435	35	}
duke@435	36
duke@435	37	int HistogramElement::count() {
duke@435	38	return _count;
duke@435	39	}
duke@435	40
duke@435	41	const char* HistogramElement::name() {
duke@435	42	return _name;
duke@435	43	}
duke@435	44
duke@435	45	void HistogramElement::increment_count() {
duke@435	46	// We can't use the accessor :-(.
duke@435	47	Atomic::inc(&_count);
duke@435	48	}
duke@435	49
duke@435	50	int HistogramElement::compare(HistogramElement* e1,HistogramElement* e2) {
duke@435	51	if(e1->count() > e2->count()) {
duke@435	52	return -1;
duke@435	53	} else if(e1->count() < e2->count()) {
duke@435	54	return 1;
duke@435	55	}
duke@435	56	return 0;
duke@435	57	}
duke@435	58
duke@435	59	void HistogramElement::print_on(outputStream* st) const {
duke@435	60	st->print("%10d ",((HistogramElement*)this)->count());
duke@435	61	st->print_cr("%s",((HistogramElement*)this)->name());
duke@435	62	}
duke@435	63
duke@435	64	////////////////// Histogram ////////////////////////
duke@435	65
duke@435	66	int Histogram::sort_helper(HistogramElement** e1, HistogramElement** e2) {
duke@435	67	return (*e1)->compare(*e1,*e2);
duke@435	68	}
duke@435	69
duke@435	70	Histogram::Histogram(const char* title,int estimatedCount) {
duke@435	71	_title = title;
zgu@3900	72	_elements = new (ResourceObj::C_HEAP, mtInternal) GrowableArray<HistogramElement*>(estimatedCount,true);
duke@435	73	}
duke@435	74
duke@435	75	void Histogram::add_element(HistogramElement* element) {
duke@435	76	// Note, we need to add locking !
duke@435	77	elements()->append(element);
duke@435	78	}
duke@435	79
duke@435	80	void Histogram::print_header(outputStream* st) {
duke@435	81	st->print_cr("%s",title());
duke@435	82	st->print_cr("--------------------------------------------------");
duke@435	83	}
duke@435	84
duke@435	85	void Histogram::print_elements(outputStream* st) {
duke@435	86	elements()->sort(Histogram::sort_helper);
duke@435	87	jint total = 0;
duke@435	88	for(int i=0; i < elements()->length(); i++) {
duke@435	89	elements()->at(i)->print();
duke@435	90	total += elements()->at(i)->count();
duke@435	91	}
duke@435	92	st->print("%10d ", total);
duke@435	93	st->print_cr("Total");
duke@435	94	}
duke@435	95
duke@435	96	void Histogram::print_on(outputStream* st) const {
duke@435	97	((Histogram*)this)->print_header(st);
duke@435	98	((Histogram*)this)->print_elements(st);
duke@435	99	}
duke@435	100
duke@435	101	#endif