stat_control.cc revision 8834 
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 finalTick;
57Stats::Value simFreq;
58
59namespace Stats {
60
61Time statTime(true);
62Tick startTick;
63
64struct SimTicksReset : public Callback
65{
66    void process()
67    {
68        statTime.setTimer();
69        startTick = curTick();
70    }
71};
72
73double
74statElapsedTime()
75{
76    Time now;
77    now.setTimer();
78
79    Time elapsed = now - statTime;
80    return elapsed;
81}
82
83Tick
84statElapsedTicks()
85{
86    return curTick() - startTick;
87}
88
89Tick
90statFinalTick()
91{
92    return curTick();
93}
94
95SimTicksReset simTicksReset;
96
97struct Global
98{
99    Stats::Formula hostInstRate;
100    Stats::Formula hostOpRate;
101    Stats::Formula hostTickRate;
102    Stats::Value hostMemory;
103    Stats::Value hostSeconds;
104
105    Stats::Value simInsts;
106    Stats::Value simOps;
107
108    Global();
109};
110
111Global::Global()
112{
113    simInsts
114        .functor(BaseCPU::numSimulatedInsts)
115        .name("sim_insts")
116        .desc("Number of instructions simulated")
117        .precision(0)
118        .prereq(simInsts)
119        ;
120
121    simOps
122        .functor(BaseCPU::numSimulatedOps)
123        .name("sim_ops")
124        .desc("Number of ops (including micro ops) simulated")
125        .precision(0)
126        .prereq(simOps)
127        ;
128
129    simSeconds
130        .name("sim_seconds")
131        .desc("Number of seconds simulated")
132        ;
133
134    simFreq
135        .scalar(SimClock::Frequency)
136        .name("sim_freq")
137        .desc("Frequency of simulated ticks")
138        ;
139
140    simTicks
141        .functor(statElapsedTicks)
142        .name("sim_ticks")
143        .desc("Number of ticks simulated")
144        ;
145
146    finalTick
147        .functor(statFinalTick)
148        .name("final_tick")
149        .desc("Number of ticks from beginning of simulation \
150(restored from checkpoints and never reset)")
151        ;
152
153    hostInstRate
154        .name("host_inst_rate")
155        .desc("Simulator instruction rate (inst/s)")
156        .precision(0)
157        .prereq(simInsts)
158        ;
159
160    hostOpRate
161        .name("host_op_rate")
162        .desc("Simulator op (including micro ops) rate (op/s)")
163        .precision(0)
164        .prereq(simOps)
165        ;
166
167    hostMemory
168        .functor(memUsage)
169        .name("host_mem_usage")
170        .desc("Number of bytes of host memory used")
171        .prereq(hostMemory)
172        ;
173
174    hostSeconds
175        .functor(statElapsedTime)
176        .name("host_seconds")
177        .desc("Real time elapsed on the host")
178        .precision(2)
179        ;
180
181    hostTickRate
182        .name("host_tick_rate")
183        .desc("Simulator tick rate (ticks/s)")
184        .precision(0)
185        ;
186
187    simSeconds = simTicks / simFreq;
188    hostInstRate = simInsts / hostSeconds;
189    hostOpRate = simOps / hostSeconds;
190    hostTickRate = simTicks / hostSeconds;
191
192    registerResetCallback(&simTicksReset);
193}
194
195void
196initSimStats()
197{
198    static Global global;
199}
200
201class StatEvent : public Event
202{
203  private:
204    bool dump;
205    bool reset;
206    Tick repeat;
207
208  public:
209    StatEvent(bool _dump, bool _reset, Tick _repeat)
210        : Event(Stat_Event_Pri, AutoDelete),
211          dump(_dump), reset(_reset), repeat(_repeat)
212    {
213    }
214
215    virtual void
216    process()
217    {
218        if (dump)
219            Stats::dump();
220
221        if (reset)
222            Stats::reset();
223
224        if (repeat) {
225            Stats::schedStatEvent(dump, reset, curTick() + repeat, repeat);
226        }
227    }
228};
229
230void
231schedStatEvent(bool dump, bool reset, Tick when, Tick repeat)
232{
233    Event *event = new StatEvent(dump, reset, repeat);
234    mainEventQueue.schedule(event, when);
235}
236
237} // namespace Stats
238