1 cananian 1.1.2.6 // Stats.java, created Sat Jan 20 23:39:00 2001 by wbeebee
2 wbeebee 1.1.2.3 // Copyright (C) 2001 Wes Beebee <wbeebee@mit.edu>
3 wbeebee 1.1.2.1 // Licensed under the terms of the GNU GPL; see COPYING for details.
4 wbeebee 1.1.2.1 package harpoon.Analysis.Realtime;
5 wbeebee 1.1.2.1
6 wbeebee 1.1.2.3 import harpoon.Analysis.Quads.QuadCounter;
7 wbeebee 1.1.2.3
8 wbeebee 1.1.2.3 import harpoon.ClassFile.CachingCodeFactory;
9 wbeebee 1.1.2.3 import harpoon.ClassFile.HCodeFactory;
10 wbeebee 1.1.2.3
11 wbeebee 1.1.2.3 import harpoon.Util.Timer;
12 wbeebee 1.1.2.1 import harpoon.Util.Util;
13 wbeebee 1.1.2.1
14 wbeebee 1.1.2.3 /**
15 wbeebee 1.1.2.3 * <code>Stats</code> calculates statistics for the static analysis
16 wbeebee 1.1.2.3 * and compilation of RTJ extensions.
17 wbeebee 1.1.2.3 *
18 cananian 1.1.2.6 * @author Wes Beebee <wbeebee@mit.edu>
19 cananian 1.4 * @version $Id: Stats.java,v 1.4 2002/04/10 03:01:16 cananian Exp $
20 wbeebee 1.1.2.3 */
21 wbeebee 1.1.2.3
22 wbeebee 1.1.2.1 class Stats {
23 wbeebee 1.1.2.3 private static long actualChecks = 0;
24 wbeebee 1.1.2.3 private static long removedChecks = 0;
25 wbeebee 1.1.2.3 private static long memAreaLoads = 0;
26 wbeebee 1.1.2.3 private static long newObjects = 0;
27 wbeebee 1.1.2.3 private static long newArrayObjects = 0;
28 wbeebee 1.1.2.5 private static long newInstanceChecks = 0;
29 wbeebee 1.1.2.3
30 wbeebee 1.1.2.3 private static Timer realtimeTimer = new Timer();
31 wbeebee 1.1.2.3 private static Timer analysisTimer = new Timer();
32 wbeebee 1.1.2.3
33 wbeebee 1.1.2.3 private static QuadCounter quadsIn = null;
34 wbeebee 1.1.2.3 private static QuadCounter quadsOut = null;
35 wbeebee 1.1.2.3
36 wbeebee 1.1.2.3 /** Tallies an actual check placed around an [A]SET. */
37 wbeebee 1.1.2.3
38 wbeebee 1.1.2.3 static void addActualMemCheck() {
39 wbeebee 1.1.2.3 actualChecks++;
40 wbeebee 1.1.2.3 }
41 wbeebee 1.1.2.3
42 wbeebee 1.1.2.3 /** Tallies a check that was removed from around an [A]SET. */
43 wbeebee 1.1.2.3
44 wbeebee 1.1.2.3 static void addRemovedMemCheck() {
45 wbeebee 1.1.2.3 removedChecks++;
46 wbeebee 1.1.2.3 }
47 wbeebee 1.1.2.3
48 wbeebee 1.1.2.3 /** Tallies a load of the current MemoryArea. */
49 wbeebee 1.1.2.3
50 wbeebee 1.1.2.3 static void addMemAreaLoad() {
51 wbeebee 1.1.2.3 memAreaLoads++;
52 wbeebee 1.1.2.3 }
53 wbeebee 1.1.2.3
54 wbeebee 1.1.2.3 /** Tracks the number of <code>Quad</code>s passing through this
55 wbeebee 1.1.2.3 * <code>HCodeFactory</code>.
56 wbeebee 1.1.2.3 */
57 wbeebee 1.1.2.3
58 wbeebee 1.1.2.3 static HCodeFactory trackQuadsIn(HCodeFactory parent) {
59 wbeebee 1.1.2.3 return new CachingCodeFactory(quadsIn = new QuadCounter(parent));
60 wbeebee 1.1.2.3 }
61 wbeebee 1.1.2.3
62 wbeebee 1.1.2.3 /** Tracks the number of <code>Quad</code>s passing through this
63 wbeebee 1.1.2.3 * <code>HCodeFactory</code>.
64 wbeebee 1.1.2.3 */
65 wbeebee 1.1.2.3
66 wbeebee 1.1.2.3 static HCodeFactory trackQuadsOut(HCodeFactory parent) {
67 wbeebee 1.1.2.3 return new CachingCodeFactory(quadsOut = new QuadCounter(parent));
68 wbeebee 1.1.2.1 }
69 wbeebee 1.1.2.1
70 wbeebee 1.1.2.3 /** Adds an object that was just <code>NEW</code>'d. */
71 wbeebee 1.1.2.1
72 wbeebee 1.1.2.3 static void addNewObject() {
73 wbeebee 1.1.2.3 newObjects++;
74 wbeebee 1.1.2.3 }
75 wbeebee 1.1.2.3
76 wbeebee 1.1.2.3 /** Adds an array that was just <code>NEW</code>'d. */
77 wbeebee 1.1.2.3
78 wbeebee 1.1.2.3 static void addNewArrayObject() {
79 wbeebee 1.1.2.3 newArrayObjects++;
80 wbeebee 1.1.2.3 }
81 wbeebee 1.1.2.3
82 wbeebee 1.1.2.5 /** Adds a Memory.newInstance() call */
83 wbeebee 1.1.2.5
84 wbeebee 1.1.2.5 static void addNewInstance() {
85 wbeebee 1.1.2.5 newInstanceChecks++;
86 wbeebee 1.1.2.5 }
87 wbeebee 1.1.2.5
88 wbeebee 1.1.2.3 /** Starts the timer for analysis. */
89 wbeebee 1.1.2.3
90 wbeebee 1.1.2.3 static void analysisBegin() {
91 wbeebee 1.1.2.3 analysisTimer.start();
92 wbeebee 1.1.2.3 }
93 wbeebee 1.1.2.3
94 wbeebee 1.1.2.3 /** Stops the timer for analysis. */
95 wbeebee 1.1.2.3
96 wbeebee 1.1.2.3 static void analysisEnd() {
97 wbeebee 1.1.2.3 analysisTimer.stop();
98 wbeebee 1.1.2.3 }
99 wbeebee 1.1.2.3
100 wbeebee 1.1.2.3 /** Starts the timer for adding RTJ extensions. */
101 wbeebee 1.1.2.3
102 wbeebee 1.1.2.3 static void realtimeBegin() {
103 wbeebee 1.1.2.3 realtimeTimer.start();
104 wbeebee 1.1.2.3 }
105 wbeebee 1.1.2.3
106 wbeebee 1.1.2.3 /** Stops the timer for adding RTJ extensions. */
107 wbeebee 1.1.2.3
108 wbeebee 1.1.2.3 static void realtimeEnd() {
109 wbeebee 1.1.2.3 realtimeTimer.stop();
110 wbeebee 1.1.2.3 }
111 wbeebee 1.1.2.3
112 wbeebee 1.1.2.3 /** Prints out statistics for addition of RTJ extensions. */
113 wbeebee 1.1.2.3
114 wbeebee 1.1.2.3 static void print() {
115 cananian 1.3.2.1 assert !analysisTimer.running() : "AnalysisTimer is still running!";
116 cananian 1.3.2.1 assert !realtimeTimer.running() : "RealtimeTimer is still running!";
117 wbeebee 1.1.2.3 System.out.println("-----------------------------------" +
118 wbeebee 1.1.2.3 "------------------");
119 wbeebee 1.1.2.3 System.out.println("Realtime Java static analysis statistics:");
120 wbeebee 1.1.2.3 System.out.println(" " +
121 wbeebee 1.1.2.3 "Before After % Savings");
122 wbeebee 1.1.2.3 System.out.print(" Memory access checks: " +
123 wbeebee 1.1.2.3 (actualChecks + removedChecks) + " "
124 wbeebee 1.1.2.5 + actualChecks + " ");
125 wbeebee 1.1.2.3 if (actualChecks+removedChecks > 0) {
126 wbeebee 1.1.2.3 System.out.print((removedChecks/
127 wbeebee 1.1.2.3 (actualChecks+removedChecks)) * 100.0);
128 wbeebee 1.1.2.3 }
129 wbeebee 1.1.2.3 System.out.println();
130 wbeebee 1.1.2.5 System.out.println(" new instance checks: " + newInstanceChecks);
131 wbeebee 1.1.2.3 System.out.println(" memArea loads: " + memAreaLoads);
132 wbeebee 1.1.2.3 System.out.println(" new objects: " + newObjects);
133 wbeebee 1.1.2.3 System.out.println(" new array objects: " + newArrayObjects);
134 wbeebee 1.1.2.3 System.out.println();
135 wbeebee 1.1.2.3 System.out.println("Total time spent adding Realtime support: "+
136 wbeebee 1.1.2.3 (realtimeTimer.timeElapsed() / 1000.0) + " s");
137 wbeebee 1.1.2.3 System.out.println(" Time spent in analysis to remove checks: "+
138 wbeebee 1.1.2.3 (analysisTimer.timeElapsed() / 1000.0) + " s");
139 wbeebee 1.1.2.3 System.out.println();
140 wbeebee 1.1.2.3 if ((quadsIn != null) || (quadsOut != null)) {
141 wbeebee 1.1.2.4 System.out.print("Number of quads");
142 wbeebee 1.1.2.3 }
143 wbeebee 1.1.2.3 if (quadsIn != null) {
144 wbeebee 1.1.2.3 System.out.print(" in: " + quadsIn.count());
145 wbeebee 1.1.2.3 }
146 wbeebee 1.1.2.3 if (quadsOut != null) {
147 wbeebee 1.1.2.4 System.out.print(" out: " + quadsOut.count());
148 wbeebee 1.1.2.3 }
149 wbeebee 1.1.2.3 if ((quadsIn != null) && (quadsOut != null)) {
150 wbeebee 1.1.2.3 System.out.print(" out-in: " + (quadsOut.count() -
151 wbeebee 1.1.2.3 quadsIn.count()));
152 wbeebee 1.1.2.3 if (quadsIn.count() > 0) {
153 wbeebee 1.1.2.3 System.out.print(" %bloat: " + ((((quadsOut.count() -
154 wbeebee 1.1.2.3 quadsIn.count()) * 1.0) /
155 wbeebee 1.1.2.3 (quadsIn.count() * 1.0))
156 wbeebee 1.1.2.3 * 100.0));
157 wbeebee 1.1.2.3 }
158 wbeebee 1.1.2.3 }
159 wbeebee 1.1.2.3 if ((quadsIn != null) || (quadsOut != null)) {
160 wbeebee 1.1.2.3 System.out.println();
161 wbeebee 1.1.2.3 }
162 wbeebee 1.1.2.3 System.out.println("-----------------------------------"+
163 wbeebee 1.1.2.3 "------------------");
164 wbeebee 1.1.2.3 }
165 cananian 1.2 }