stat_control.cc revision 4078:3f73f808bbd4 
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 "cpu/base.hh"
43#include "sim/eventq.hh"
44
45using namespace std;
46
47Stats::Formula hostInstRate;
48Stats::Formula hostTickRate;
49Stats::Value hostMemory;
50Stats::Value hostSeconds;
51
52Stats::Value simTicks;
53Stats::Value simInsts;
54Stats::Value simFreq;
55Stats::Formula simSeconds;
56
57namespace Stats {
58
59Time statTime(true);
60Tick startTick;
61
62struct SimTicksReset : public Callback
63{
64    void process()
65    {
66        statTime.set();
67        startTick = curTick;
68    }
69};
70
71double
72statElapsedTime()
73{
74    Time now(true);
75    Time elapsed = now - statTime;
76    return elapsed();
77}
78
79Tick
80statElapsedTicks()
81{
82    return curTick - startTick;
83}
84
85SimTicksReset simTicksReset;
86
87void
88initSimStats()
89{
90    simInsts
91        .functor(BaseCPU::numSimulatedInstructions)
92        .name("sim_insts")
93        .desc("Number of instructions simulated")
94        .precision(0)
95        .prereq(simInsts)
96        ;
97
98    simSeconds
99        .name("sim_seconds")
100        .desc("Number of seconds simulated")
101        ;
102
103    simFreq
104        .scalar(Clock::Frequency)
105        .name("sim_freq")
106        .desc("Frequency of simulated ticks")
107        ;
108
109    simTicks
110        .functor(statElapsedTicks)
111        .name("sim_ticks")
112        .desc("Number of ticks simulated")
113        ;
114
115    hostInstRate
116        .name("host_inst_rate")
117        .desc("Simulator instruction rate (inst/s)")
118        .precision(0)
119        .prereq(simInsts)
120        ;
121
122    hostMemory
123        .functor(memUsage)
124        .name("host_mem_usage")
125        .desc("Number of bytes of host memory used")
126        .prereq(hostMemory)
127        ;
128
129    hostSeconds
130        .functor(statElapsedTime)
131        .name("host_seconds")
132        .desc("Real time elapsed on the host")
133        .precision(2)
134        ;
135
136    hostTickRate
137        .name("host_tick_rate")
138        .desc("Simulator tick rate (ticks/s)")
139        .precision(0)
140        ;
141
142    simSeconds = simTicks / simFreq;
143    hostInstRate = simInsts / hostSeconds;
144    hostTickRate = simTicks / hostSeconds;
145
146    registerResetCallback(&simTicksReset);
147}
148
149class _StatEvent : public Event
150{
151  private:
152    bool dump;
153    bool reset;
154    Tick repeat;
155
156  public:
157    _StatEvent(bool _dump, bool _reset, Tick _when, Tick _repeat)
158        : Event(&mainEventQueue, Stat_Event_Pri), dump(_dump), reset(_reset),
159          repeat(_repeat)
160    {
161        setFlags(AutoDelete);
162        schedule(_when);
163    }
164
165    virtual void
166    process()
167    {
168        if (dump)
169            Stats::dump();
170
171        if (reset)
172            Stats::reset();
173
174        if (repeat)
175            new _StatEvent(dump, reset, curTick + repeat, repeat);
176    }
177};
178
179void
180StatEvent(bool dump, bool reset, Tick when, Tick repeat)
181{
182    new _StatEvent(dump, reset, when, repeat);
183}
184
185/* namespace Stats */ }
186