stat_control.cc revision 8229:78bf55f23338 
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
206