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 package sun.jvm.hotspot.tools;
26
27 import java.util.*;
28 import sun.jvm.hotspot.gc.g1.*;
29 import sun.jvm.hotspot.gc.parallel.*;
30 import sun.jvm.hotspot.gc.serial.*;
31 import sun.jvm.hotspot.gc.shared.*;
32 import sun.jvm.hotspot.debugger.JVMDebugger;
33 import sun.jvm.hotspot.memory.*;
34 import sun.jvm.hotspot.oops.*;
35 import sun.jvm.hotspot.runtime.*;
36
37 public class HeapSummary extends Tool {
38
39 public HeapSummary() {
40 super();
41 }
42
43 public HeapSummary(JVMDebugger d) {
44 super(d);
45 }
46
47 public static void main(String[] args) {
48 HeapSummary hs = new HeapSummary();
49 hs.execute(args);
50 }
51
107 printSpace(to);
108 } else {
109 System.out.println(gen.name() + ":");
110 printGen(gen);
111 }
112 }
113 } else if (heap instanceof G1CollectedHeap) {
114 printG1HeapSummary((G1CollectedHeap)heap);
115 } else if (heap instanceof ParallelScavengeHeap) {
116 ParallelScavengeHeap psh = (ParallelScavengeHeap) heap;
117 PSYoungGen youngGen = psh.youngGen();
118 printPSYoungGen(youngGen);
119
120 PSOldGen oldGen = psh.oldGen();
121 long oldFree = oldGen.capacity() - oldGen.used();
122 System.out.println("PS Old Generation");
123 printValMB("capacity = ", oldGen.capacity());
124 printValMB("used = ", oldGen.used());
125 printValMB("free = ", oldFree);
126 System.out.println(alignment + (double)oldGen.used() * 100.0 / oldGen.capacity() + "% used");
127 } else {
128 throw new RuntimeException("unknown CollectedHeap type : " + heap.getClass());
129 }
130
131 System.out.println();
132 }
133
134 // Helper methods
135
136 private void printGCAlgorithm(Map flagMap) {
137 long l = getFlagValue("UseTLAB", flagMap);
138 if (l == 1L) {
139 System.out.println("using thread-local object allocation.");
140 }
141
142 l = getFlagValue("UseConcMarkSweepGC", flagMap);
143 if (l == 1L) {
144 System.out.println("Concurrent Mark-Sweep GC");
145 return;
146 }
147
148 l = getFlagValue("UseParallelGC", flagMap);
149 if (l == 1L) {
150 System.out.print("Parallel GC ");
151 l = getFlagValue("ParallelGCThreads", flagMap);
152 System.out.println("with " + l + " thread(s)");
153 return;
154 }
155
156 l = getFlagValue("UseG1GC", flagMap);
157 if (l == 1L) {
158 System.out.print("Garbage-First (G1) GC ");
159 l = getFlagValue("ParallelGCThreads", flagMap);
160 System.out.println("with " + l + " thread(s)");
161 return;
162 }
163
164 System.out.println("Mark Sweep Compact GC");
165 }
166
167 private void printPSYoungGen(PSYoungGen youngGen) {
168 System.out.println("PS Young Generation");
169 MutableSpace eden = youngGen.edenSpace();
170 System.out.println("Eden Space:");
171 printMutableSpace(eden);
172 MutableSpace from = youngGen.fromSpace();
173 System.out.println("From Space:");
174 printMutableSpace(from);
175 MutableSpace to = youngGen.toSpace();
176 System.out.println("To Space:");
177 printMutableSpace(to);
178 }
|
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 package sun.jvm.hotspot.tools;
26
27 import java.util.*;
28 import sun.jvm.hotspot.gc.g1.*;
29 import sun.jvm.hotspot.gc.parallel.*;
30 import sun.jvm.hotspot.gc.serial.*;
31 import sun.jvm.hotspot.gc.shared.*;
32 import sun.jvm.hotspot.gc.z.*;
33 import sun.jvm.hotspot.debugger.JVMDebugger;
34 import sun.jvm.hotspot.memory.*;
35 import sun.jvm.hotspot.oops.*;
36 import sun.jvm.hotspot.runtime.*;
37
38 public class HeapSummary extends Tool {
39
40 public HeapSummary() {
41 super();
42 }
43
44 public HeapSummary(JVMDebugger d) {
45 super(d);
46 }
47
48 public static void main(String[] args) {
49 HeapSummary hs = new HeapSummary();
50 hs.execute(args);
51 }
52
108 printSpace(to);
109 } else {
110 System.out.println(gen.name() + ":");
111 printGen(gen);
112 }
113 }
114 } else if (heap instanceof G1CollectedHeap) {
115 printG1HeapSummary((G1CollectedHeap)heap);
116 } else if (heap instanceof ParallelScavengeHeap) {
117 ParallelScavengeHeap psh = (ParallelScavengeHeap) heap;
118 PSYoungGen youngGen = psh.youngGen();
119 printPSYoungGen(youngGen);
120
121 PSOldGen oldGen = psh.oldGen();
122 long oldFree = oldGen.capacity() - oldGen.used();
123 System.out.println("PS Old Generation");
124 printValMB("capacity = ", oldGen.capacity());
125 printValMB("used = ", oldGen.used());
126 printValMB("free = ", oldFree);
127 System.out.println(alignment + (double)oldGen.used() * 100.0 / oldGen.capacity() + "% used");
128 } else if (heap instanceof ZCollectedHeap) {
129 ZCollectedHeap zheap = (ZCollectedHeap) heap;
130 zheap.printOn(System.out);
131 } else {
132 throw new RuntimeException("unknown CollectedHeap type : " + heap.getClass());
133 }
134
135 System.out.println();
136 }
137
138 // Helper methods
139
140 private void printGCAlgorithm(Map flagMap) {
141 long l = getFlagValue("UseTLAB", flagMap);
142 if (l == 1L) {
143 System.out.println("using thread-local object allocation.");
144 }
145
146 l = getFlagValue("UseConcMarkSweepGC", flagMap);
147 if (l == 1L) {
148 System.out.println("Concurrent Mark-Sweep GC");
149 return;
150 }
151
152 l = getFlagValue("UseParallelGC", flagMap);
153 if (l == 1L) {
154 System.out.print("Parallel GC ");
155 l = getFlagValue("ParallelGCThreads", flagMap);
156 System.out.println("with " + l + " thread(s)");
157 return;
158 }
159
160 l = getFlagValue("UseG1GC", flagMap);
161 if (l == 1L) {
162 System.out.print("Garbage-First (G1) GC ");
163 l = getFlagValue("ParallelGCThreads", flagMap);
164 System.out.println("with " + l + " thread(s)");
165 return;
166 }
167
168 l = getFlagValue("UseZGC", flagMap);
169 if (l == 1L) {
170 System.out.print("ZGC ");
171 l = getFlagValue("ParallelGCThreads", flagMap);
172 System.out.println("with " + l + " thread(s)");
173 return;
174 }
175
176 System.out.println("Mark Sweep Compact GC");
177 }
178
179 private void printPSYoungGen(PSYoungGen youngGen) {
180 System.out.println("PS Young Generation");
181 MutableSpace eden = youngGen.edenSpace();
182 System.out.println("Eden Space:");
183 printMutableSpace(eden);
184 MutableSpace from = youngGen.fromSpace();
185 System.out.println("From Space:");
186 printMutableSpace(from);
187 MutableSpace to = youngGen.toSpace();
188 System.out.println("To Space:");
189 printMutableSpace(to);
190 }
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