1/*
2 * Copyright (c) 2004-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;
9 * redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution;
12 * neither the name of the copyright holders nor the names of its
13 * contributors may be used to endorse or promote products derived from
14 * this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
17 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
18 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
19 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
20 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
26 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * Authors: Nathan Binkert
29 */
30
31// This file will contain default statistics for the simulator that
32// don't really belong to a specific simulator object
33
34#include <fstream>
35#include <iostream>
36#include <list>
37
38#include "base/callback.hh"
39#include "base/hostinfo.hh"
40#include "base/statistics.hh"
41#include "base/time.hh"
42#include "config/the_isa.hh"
43#if THE_ISA == NO_ISA
44#include "arch/noisa/cpu_dummy.hh"
45#else
46#include "cpu/base.hh"
47#endif
48
49#include "sim/eventq.hh"
50#include "sim/stat_control.hh"
51
52using namespace std;
53
54Stats::Formula simSeconds;
55Stats::Value simTicks;
56Stats::Value simFreq;
57
58namespace Stats {
59
60Time statTime(true);
61Tick startTick;
62
63struct SimTicksReset : public Callback
64{
65 void process()
66 {
67 statTime.setTimer();
68 startTick = curTick();
69 }
70};
71
72double
73statElapsedTime()
74{
75 Time now;
76 now.setTimer();
77
78 Time elapsed = now - statTime;
79 return elapsed;
80}
81
82Tick
83statElapsedTicks()
84{
85 return curTick() - startTick;
86}
87
88SimTicksReset simTicksReset;
89
90struct Global
91{
92 Stats::Formula hostInstRate;
93 Stats::Formula hostTickRate;
94 Stats::Value hostMemory;
95 Stats::Value hostSeconds;
96
97 Stats::Value simInsts;
98
99 Global();
100};
101
102Global::Global()
103{
104 simInsts
105 .functor(BaseCPU::numSimulatedInstructions)
106 .name("sim_insts")
107 .desc("Number of instructions simulated")
108 .precision(0)
109 .prereq(simInsts)
110 ;
111
112 simSeconds
113 .name("sim_seconds")
114 .desc("Number of seconds simulated")
115 ;
116
117 simFreq
118 .scalar(SimClock::Frequency)
119 .name("sim_freq")
120 .desc("Frequency of simulated ticks")
121 ;
122
123 simTicks
124 .functor(statElapsedTicks)
125 .name("sim_ticks")
126 .desc("Number of ticks simulated")
127 ;
128
129 hostInstRate
130 .name("host_inst_rate")
131 .desc("Simulator instruction rate (inst/s)")
132 .precision(0)
133 .prereq(simInsts)
134 ;
135
136 hostMemory
137 .functor(memUsage)
138 .name("host_mem_usage")
139 .desc("Number of bytes of host memory used")
140 .prereq(hostMemory)
141 ;
142
143 hostSeconds
144 .functor(statElapsedTime)
145 .name("host_seconds")
146 .desc("Real time elapsed on the host")
147 .precision(2)
148 ;
149
150 hostTickRate
151 .name("host_tick_rate")
152 .desc("Simulator tick rate (ticks/s)")
153 .precision(0)
154 ;
155
156 simSeconds = simTicks / simFreq;
157 hostInstRate = simInsts / hostSeconds;
158 hostTickRate = simTicks / hostSeconds;
159
160 registerResetCallback(&simTicksReset);
161}
162
163void
164initSimStats()
165{
166 static Global global;
167}
168
169class StatEvent : public Event
170{
171 private:
172 bool dump;
173 bool reset;
174 Tick repeat;
175
176 public:
177 StatEvent(bool _dump, bool _reset, Tick _repeat)
178 : Event(Stat_Event_Pri), dump(_dump), reset(_reset), repeat(_repeat)
179 {
180 setFlags(AutoDelete);
181 }
182
183 virtual void
184 process()
185 {
186 if (dump)
187 Stats::dump();
188
189 if (reset)
190 Stats::reset();
191
192 if (repeat) {
193 Stats::schedStatEvent(dump, reset, curTick() + repeat, repeat);
194 }
195 }
196};
197
198void
199schedStatEvent(bool dump, bool reset, Tick when, Tick repeat)
200{
201 Event *event = new StatEvent(dump, reset, repeat);
202 mainEventQueue.schedule(event, when);
203}
204
205} // namespace Stats