stat_control.cc revision 7811:a8fc35183c10 
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
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.set();
68        startTick = curTick;
69    }
70};
71
72double
73statElapsedTime()
74{
75    Time now(true);
76    Time elapsed = now - statTime;
77    return elapsed();
78}
79
80Tick
81statElapsedTicks()
82{
83    return curTick - startTick;
84}
85
86SimTicksReset simTicksReset;
87
88struct Global
89{
90    Stats::Formula hostInstRate;
91    Stats::Formula hostTickRate;
92    Stats::Value hostMemory;
93    Stats::Value hostSeconds;
94
95    Stats::Value simInsts;
96
97    Global();
98};
99
100Global::Global()
101{
102    simInsts
103        .functor(BaseCPU::numSimulatedInstructions)
104        .name("sim_insts")
105        .desc("Number of instructions simulated")
106        .precision(0)
107        .prereq(simInsts)
108        ;
109
110    simSeconds
111        .name("sim_seconds")
112        .desc("Number of seconds simulated")
113        ;
114
115    simFreq
116        .scalar(SimClock::Frequency)
117        .name("sim_freq")
118        .desc("Frequency of simulated ticks")
119        ;
120
121    simTicks
122        .functor(statElapsedTicks)
123        .name("sim_ticks")
124        .desc("Number of ticks simulated")
125        ;
126
127    hostInstRate
128        .name("host_inst_rate")
129        .desc("Simulator instruction rate (inst/s)")
130        .precision(0)
131        .prereq(simInsts)
132        ;
133
134    hostMemory
135        .functor(memUsage)
136        .name("host_mem_usage")
137        .desc("Number of bytes of host memory used")
138        .prereq(hostMemory)
139        ;
140
141    hostSeconds
142        .functor(statElapsedTime)
143        .name("host_seconds")
144        .desc("Real time elapsed on the host")
145        .precision(2)
146        ;
147
148    hostTickRate
149        .name("host_tick_rate")
150        .desc("Simulator tick rate (ticks/s)")
151        .precision(0)
152        ;
153
154    simSeconds = simTicks / simFreq;
155    hostInstRate = simInsts / hostSeconds;
156    hostTickRate = simTicks / hostSeconds;
157
158    registerResetCallback(&simTicksReset);
159}
160
161void
162initSimStats()
163{
164    static Global global;
165}
166
167class _StatEvent : public Event
168{
169  private:
170    bool dump;
171    bool reset;
172    Tick repeat;
173
174  public:
175    _StatEvent(bool _dump, bool _reset, Tick _repeat)
176        : Event(Stat_Event_Pri), dump(_dump), reset(_reset), repeat(_repeat)
177    {
178        setFlags(AutoDelete);
179    }
180
181    virtual void
182    process()
183    {
184        if (dump)
185            Stats::dump();
186
187        if (reset)
188            Stats::reset();
189
190        if (repeat) {
191            Event *event = new _StatEvent(dump, reset, repeat);
192            mainEventQueue.schedule(event, curTick + repeat);
193        }
194    }
195};
196
197void
198StatEvent(bool dump, bool reset, Tick when, Tick repeat)
199{
200    Event *event = new _StatEvent(dump, reset, repeat);
201    mainEventQueue.schedule(event, when);
202}
203
204} // namespace Stats
205