stat_control.cc revision 7840 
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
43#include "config/the_isa.hh"
44#if THE_ISA == NO_ISA
45#include "arch/noisa/cpu_dummy.hh"
46#else
47#include "cpu/base.hh"
48#endif
49
50#include "sim/eventq.hh"
51#include "sim/stat_control.hh"
52
53using namespace std;
54
55Stats::Formula simSeconds;
56Stats::Value simTicks;
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
89SimTicksReset simTicksReset;
90
91struct Global
92{
93    Stats::Formula hostInstRate;
94    Stats::Formula hostTickRate;
95    Stats::Value hostMemory;
96    Stats::Value hostSeconds;
97
98    Stats::Value simInsts;
99
100    Global();
101};
102
103Global::Global()
104{
105    simInsts
106        .functor(BaseCPU::numSimulatedInstructions)
107        .name("sim_insts")
108        .desc("Number of instructions simulated")
109        .precision(0)
110        .prereq(simInsts)
111        ;
112
113    simSeconds
114        .name("sim_seconds")
115        .desc("Number of seconds simulated")
116        ;
117
118    simFreq
119        .scalar(SimClock::Frequency)
120        .name("sim_freq")
121        .desc("Frequency of simulated ticks")
122        ;
123
124    simTicks
125        .functor(statElapsedTicks)
126        .name("sim_ticks")
127        .desc("Number of ticks simulated")
128        ;
129
130    hostInstRate
131        .name("host_inst_rate")
132        .desc("Simulator instruction rate (inst/s)")
133        .precision(0)
134        .prereq(simInsts)
135        ;
136
137    hostMemory
138        .functor(memUsage)
139        .name("host_mem_usage")
140        .desc("Number of bytes of host memory used")
141        .prereq(hostMemory)
142        ;
143
144    hostSeconds
145        .functor(statElapsedTime)
146        .name("host_seconds")
147        .desc("Real time elapsed on the host")
148        .precision(2)
149        ;
150
151    hostTickRate
152        .name("host_tick_rate")
153        .desc("Simulator tick rate (ticks/s)")
154        .precision(0)
155        ;
156
157    simSeconds = simTicks / simFreq;
158    hostInstRate = simInsts / hostSeconds;
159    hostTickRate = simTicks / hostSeconds;
160
161    registerResetCallback(&simTicksReset);
162}
163
164void
165initSimStats()
166{
167    static Global global;
168}
169
170class StatEvent : public Event
171{
172  private:
173    bool dump;
174    bool reset;
175    Tick repeat;
176
177  public:
178    StatEvent(bool _dump, bool _reset, Tick _repeat)
179        : Event(Stat_Event_Pri), dump(_dump), reset(_reset), repeat(_repeat)
180    {
181        setFlags(AutoDelete);
182    }
183
184    virtual void
185    process()
186    {
187        if (dump)
188            Stats::dump();
189
190        if (reset)
191            Stats::reset();
192
193        if (repeat) {
194            Stats::schedStatEvent(dump, reset, curTick() + repeat, repeat);
195        }
196    }
197};
198
199void
200schedStatEvent(bool dump, bool reset, Tick when, Tick repeat)
201{
202    Event *event = new StatEvent(dump, reset, repeat);
203    mainEventQueue.schedule(event, when);
204}
205
206} // namespace Stats
207