1 /*
2 * Copyright (c) 2002, 2025, 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 "gc/shared/collectorCounters.hpp"
26 #include "memory/allocation.inline.hpp"
27 #include "memory/resourceArea.hpp"
28 #include "runtime/os.hpp"
29
30 CollectorCounters::CollectorCounters(const char* name, int ordinal) {
31
32 if (UsePerfData) {
33 EXCEPTION_MARK;
34 ResourceMark rm;
35
36 const char* cns = PerfDataManager::name_space("collector", ordinal);
37
38 _name_space = NEW_C_HEAP_ARRAY(char, strlen(cns)+1, mtGC);
39 strcpy(_name_space, cns);
40
41 char* cname = PerfDataManager::counter_name(_name_space, "name");
42 PerfDataManager::create_string_constant(SUN_GC, cname, name, CHECK);
43
44 cname = PerfDataManager::counter_name(_name_space, "invocations");
45 _invocations = PerfDataManager::create_counter(SUN_GC, cname,
46 PerfData::U_Events, CHECK);
47
48 cname = PerfDataManager::counter_name(_name_space, "time");
49 _time = PerfDataManager::create_counter(SUN_GC, cname, PerfData::U_Ticks,
50 CHECK);
51
52 cname = PerfDataManager::counter_name(_name_space, "lastEntryTime");
53 _last_entry_time = PerfDataManager::create_variable(SUN_GC, cname,
54 PerfData::U_Ticks,
55 CHECK);
56
57 cname = PerfDataManager::counter_name(_name_space, "lastExitTime");
58 _last_exit_time = PerfDataManager::create_variable(SUN_GC, cname,
59 PerfData::U_Ticks,
60 CHECK);
61 }
62 }
63
64 CollectorCounters::~CollectorCounters() {
65 FREE_C_HEAP_ARRAY(char, _name_space);
66 }
67
68 TraceCollectorStats::TraceCollectorStats(CollectorCounters* c) :
69 PerfTraceElapsedTimeEvent(c->time_counter(), c->invocation_counter()),
70 _c(c) {
71
72 if (UsePerfData) {
73 _c->last_entry_counter()->set_value(os::elapsed_counter());
74 }
75 }
76
77 TraceCollectorStats::~TraceCollectorStats() {
78 if (UsePerfData) {
79 _c->last_exit_counter()->set_value(os::elapsed_counter());
80 }
81 }