13195
|
1 |
/*
|
|
2 |
* Copyright (c) 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 |
#include "precompiled.hpp"
|
|
25 |
#include "services/nmtDCmd.hpp"
|
|
26 |
#include "services/memReporter.hpp"
|
|
27 |
#include "services/memTracker.hpp"
|
|
28 |
#include "utilities/globalDefinitions.hpp"
|
|
29 |
|
|
30 |
NMTDCmd::NMTDCmd(outputStream* output,
|
|
31 |
bool heap): DCmdWithParser(output, heap),
|
|
32 |
_summary("summary", "request runtime to report current memory summary, " \
|
|
33 |
"which includes total reserved and committed memory, along " \
|
|
34 |
"with memory usage summary by each subsytem.",
|
|
35 |
"BOOLEAN", false, "false"),
|
|
36 |
_detail("detail", "request runtime to report memory allocation >= "
|
|
37 |
"1K by each callsite.",
|
|
38 |
"BOOLEAN", false, "false"),
|
|
39 |
_baseline("baseline", "request runtime to baseline current memory usage, " \
|
|
40 |
"so it can be compared against in later time.",
|
|
41 |
"BOOLEAN", false, "false"),
|
|
42 |
_summary_diff("summary.diff", "request runtime to report memory summary " \
|
|
43 |
"comparison against previous baseline.",
|
|
44 |
"BOOLEAN", false, "false"),
|
|
45 |
_detail_diff("detail.diff", "request runtime to report memory detail " \
|
|
46 |
"comparison against previous baseline, which shows the memory " \
|
|
47 |
"allocation activities at different callsites.",
|
|
48 |
"BOOLEAN", false, "false"),
|
|
49 |
_shutdown("shutdown", "request runtime to shutdown itself and free the " \
|
|
50 |
"memory used by runtime.",
|
|
51 |
"BOOLEAN", false, "false"),
|
|
52 |
#ifndef PRODUCT
|
|
53 |
_debug("debug", "print tracker statistics. Debug only, not thread safe", \
|
|
54 |
"BOOLEAN", false, "false"),
|
|
55 |
#endif
|
|
56 |
_scale("scale", "Memory usage in which scale, KB, MB or GB",
|
|
57 |
"STRING", false, "KB") {
|
|
58 |
_dcmdparser.add_dcmd_option(&_summary);
|
|
59 |
_dcmdparser.add_dcmd_option(&_detail);
|
|
60 |
_dcmdparser.add_dcmd_option(&_baseline);
|
|
61 |
_dcmdparser.add_dcmd_option(&_summary_diff);
|
|
62 |
_dcmdparser.add_dcmd_option(&_detail_diff);
|
|
63 |
_dcmdparser.add_dcmd_option(&_shutdown);
|
|
64 |
#ifndef PRODUCT
|
|
65 |
_dcmdparser.add_dcmd_option(&_debug);
|
|
66 |
#endif
|
|
67 |
_dcmdparser.add_dcmd_option(&_scale);
|
|
68 |
}
|
|
69 |
|
|
70 |
void NMTDCmd::execute(TRAPS) {
|
|
71 |
const char* scale_value = _scale.value();
|
|
72 |
size_t scale_unit;
|
|
73 |
if (strcmp(scale_value, "KB") == 0 || strcmp(scale_value, "kb") == 0) {
|
|
74 |
scale_unit = K;
|
|
75 |
} else if (strcmp(scale_value, "MB") == 0 ||
|
|
76 |
strcmp(scale_value, "mb") == 0) {
|
|
77 |
scale_unit = M;
|
|
78 |
} else if (strcmp(scale_value, "GB") == 0 ||
|
|
79 |
strcmp(scale_value, "gb") == 0) {
|
|
80 |
scale_unit = G;
|
|
81 |
} else {
|
|
82 |
output()->print_cr("Incorrect scale value: %s", scale_value);
|
|
83 |
return;
|
|
84 |
}
|
|
85 |
|
|
86 |
int nopt = 0;
|
|
87 |
if(_summary.is_set()) { ++nopt; }
|
|
88 |
if(_detail.is_set()) { ++nopt; }
|
|
89 |
if(_baseline.is_set()) { ++nopt; }
|
|
90 |
if(_summary_diff.is_set()) { ++nopt; }
|
|
91 |
if(_detail_diff.is_set()) { ++nopt; }
|
|
92 |
if(_shutdown.is_set()) { ++nopt; }
|
|
93 |
#ifndef PRODUCT
|
|
94 |
if(_debug.is_set()) { ++nopt; }
|
|
95 |
#endif
|
|
96 |
|
|
97 |
if(nopt > 1) {
|
|
98 |
output()->print_cr("At most one of the following option can be specified: " \
|
|
99 |
"summary, detail, baseline, summary.diff, detail.diff, shutdown"
|
|
100 |
#ifndef PRODUCT
|
|
101 |
" ,debug"
|
|
102 |
#endif
|
|
103 |
);
|
|
104 |
return;
|
|
105 |
}
|
|
106 |
|
|
107 |
if(nopt == 0) {
|
|
108 |
_summary.set_value(true);
|
|
109 |
}
|
|
110 |
|
|
111 |
#ifndef PRODUCT
|
|
112 |
if (_debug.value()) {
|
|
113 |
output()->print_cr("debug command is NOT thread-safe, may cause crash");
|
|
114 |
MemTracker::print_tracker_stats(output());
|
|
115 |
return;
|
|
116 |
}
|
|
117 |
#endif
|
|
118 |
|
|
119 |
// native memory tracking has to be on
|
|
120 |
if (!MemTracker::is_on() || MemTracker::shutdown_in_progress()) {
|
|
121 |
// if it is not on, what's the reason?
|
|
122 |
output()->print_cr(MemTracker::reason());
|
|
123 |
return;
|
|
124 |
}
|
|
125 |
|
|
126 |
if (_summary.value()) {
|
|
127 |
BaselineTTYOutputer outputer(output());
|
|
128 |
MemTracker::print_memory_usage(outputer, scale_unit, true);
|
|
129 |
} else if (_detail.value()) {
|
|
130 |
BaselineTTYOutputer outputer(output());
|
|
131 |
MemTracker::print_memory_usage(outputer, scale_unit, false);
|
|
132 |
} else if (_baseline.value()) {
|
|
133 |
if (MemTracker::baseline()) {
|
|
134 |
output()->print_cr("Successfully baselined.");
|
|
135 |
} else {
|
|
136 |
output()->print_cr("Baseline failed.");
|
|
137 |
}
|
|
138 |
} else if (_summary_diff.value()) {
|
|
139 |
if (MemTracker::has_baseline()) {
|
|
140 |
BaselineTTYOutputer outputer(output());
|
|
141 |
MemTracker::compare_memory_usage(outputer, scale_unit, true);
|
|
142 |
} else {
|
|
143 |
output()->print_cr("No baseline to compare, run 'baseline' command first");
|
|
144 |
}
|
|
145 |
} else if (_detail_diff.value()) {
|
|
146 |
if (MemTracker::has_baseline()) {
|
|
147 |
BaselineTTYOutputer outputer(output());
|
|
148 |
MemTracker::compare_memory_usage(outputer, scale_unit, false);
|
|
149 |
} else {
|
|
150 |
output()->print_cr("No baseline to compare to, run 'baseline' command first");
|
|
151 |
}
|
|
152 |
} else if (_shutdown.value()) {
|
|
153 |
MemTracker::shutdown(MemTracker::NMT_shutdown_user);
|
|
154 |
output()->print_cr("Shutdown is in progress, it will take a few moments to " \
|
|
155 |
"completely shutdown");
|
|
156 |
} else {
|
|
157 |
ShouldNotReachHere();
|
|
158 |
output()->print_cr("Unknown command");
|
|
159 |
}
|
|
160 |
}
|
|
161 |
|
|
162 |
int NMTDCmd::num_arguments() {
|
|
163 |
ResourceMark rm;
|
|
164 |
NMTDCmd* dcmd = new NMTDCmd(NULL, false);
|
|
165 |
if (dcmd != NULL) {
|
|
166 |
DCmdMark mark(dcmd);
|
|
167 |
return dcmd->_dcmdparser.num_arguments();
|
|
168 |
} else {
|
|
169 |
return 0;
|
|
170 |
}
|
|
171 |
}
|
|
172 |
|