stat_control.cc revision 707 
1/*
2 * Copyright (c) 2003 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
29// This file will contain default statistics for the simulator that
30// don't really belong to a specific simulator object
31
32#include <fstream>
33#include <iostream>
34#include <list>
35
36#include "base/callback.hh"
37#include "base/hostinfo.hh"
38#include "base/statistics.hh"
39#include "base/str.hh"
40#include "base/time.hh"
41#include "base/stats/output.hh"
42#include "cpu/base_cpu.hh"
43#include "sim/eventq.hh"
44#include "sim/sim_object.hh"
45#include "sim/stat_control.hh"
46#include "sim/universe.hh"
47
48using namespace std;
49
50Statistics::Formula hostInstRate;
51Statistics::Formula hostTickRate;
52Statistics::Value hostMemory;
53Statistics::Value hostSeconds;
54
55Statistics::Value simTicks;
56Statistics::Value simInsts;
57Statistics::Value simFreq;
58Statistics::Formula simSeconds;
59
60namespace Statistics {
61
62Time statTime(true);
63Tick startTick;
64
65class SimTicksReset : public Callback
66{
67  public:
68    void process()
69    {
70        statTime.set();
71        startTick = curTick;
72    }
73};
74
75double
76statElapsedTime()
77{
78    Time now(true);
79    Time elapsed = now - statTime;
80    return elapsed();
81}
82
83SimTicksReset simTicksReset;
84
85void
86InitSimStats()
87{
88    simInsts
89        .functor(BaseCPU::numSimulatedInstructions)
90        .name("sim_insts")
91        .desc("Number of instructions simulated")
92        .precision(0)
93        .prereq(simInsts)
94        ;
95
96    simSeconds
97        .name("sim_seconds")
98        .desc("Number of seconds simulated")
99        ;
100
101    simFreq
102        .scalar(ticksPerSecond)
103        .name("sim_freq")
104        .desc("Frequency of simulated ticks")
105        ;
106
107    simTicks
108        .scalar(curTick)
109        .name("sim_ticks")
110        .desc("Number of ticks simulated")
111        ;
112
113    hostInstRate
114        .name("host_inst_rate")
115        .desc("Simulator instruction rate (inst/s)")
116        .precision(0)
117        .prereq(simInsts)
118        ;
119
120    hostMemory
121        .functor(memUsage)
122        .name("host_mem_usage")
123        .desc("Number of bytes of host memory used")
124        .prereq(hostMemory)
125        ;
126
127    hostSeconds
128        .functor(statElapsedTime)
129        .name("host_seconds")
130        .desc("Real time elapsed on the host")
131        .precision(2)
132        ;
133
134    hostTickRate
135        .name("host_tick_rate")
136        .desc("Simulator tick rate (ticks/s)")
137        .precision(0)
138        ;
139
140    simSeconds = simTicks / simFreq;
141    hostInstRate = simInsts / hostSeconds;
142    hostTickRate = simTicks / hostSeconds;
143
144    registerResetCallback(&simTicksReset);
145}
146
147class StatEvent : public Event
148{
149  protected:
150    int flags;
151    Tick repeat;
152
153  public:
154    StatEvent(int _flags, Tick _when, Tick _repeat);
155    virtual void process();
156    virtual const char *description();
157};
158
159StatEvent::StatEvent(int _flags, Tick _when, Tick _repeat)
160    : Event(&mainEventQueue, Stat_Event_Pri),
161      flags(_flags), repeat(_repeat)
162{
163    setFlags(AutoDelete);
164    schedule(_when);
165}
166
167const char *
168StatEvent::description()
169{
170    return "Statistics dump and/or reset";
171}
172
173void
174StatEvent::process()
175{
176    if (flags & Statistics::Dump)
177        DumpNow();
178
179    if (flags & Statistics::Reset)
180        reset();
181
182    if (repeat)
183        schedule(curTick + repeat);
184}
185
186list<Output *> OutputList;
187
188void
189DumpNow()
190{
191    list<Output *>::iterator i = OutputList.begin();
192    list<Output *>::iterator end = OutputList.end();
193    for (; i != end; ++i) {
194        Output *output = *i;
195        if (!output->valid())
196            continue;
197
198        output->output();
199    }
200}
201
202void
203SetupEvent(int flags, Tick when, Tick repeat)
204{
205    new StatEvent(flags, when, repeat);
206}
207
208/* namespace Statistics */ }
209
210extern "C" void
211debugDumpStats()
212{
213    Statistics::DumpNow();
214}
215
216