stat_control.cc revision 695 
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 "sim/eventq.hh"
43#include "sim/sim_object.hh"
44#include "sim/stat_control.hh"
45#include "sim/universe.hh"
46
47using namespace std;
48
49Statistics::Formula hostInstRate;
50Statistics::Formula hostMemory;
51Statistics::Formula hostSeconds;
52Statistics::Formula hostTickRate;
53
54Statistics::Formula simInsts;
55Statistics::Formula simSeconds;
56Statistics::Formula simTicks;
57
58namespace Statistics {
59
60Time statTime(true);
61Tick startTick;
62
63class SimTicksReset : public Callback
64{
65  public:
66    void process()
67    {
68        statTime.set();
69        startTick = curTick;
70    }
71};
72
73double
74statElapsedTime()
75{
76    Time now(true);
77    Time elapsed = now - statTime;
78    return elapsed();
79}
80
81SimTicksReset simTicksReset;
82
83void
84InitSimStats()
85{
86    simInsts
87        .name("sim_insts")
88        .desc("Number of instructions simulated")
89        .precision(0)
90        .prereq(simInsts)
91        ;
92
93    simSeconds
94        .name("sim_seconds")
95        .desc("Number of seconds simulated")
96        ;
97
98    simTicks
99        .name("sim_ticks")
100        .desc("Number of ticks simulated")
101        ;
102
103    hostInstRate
104        .name("host_inst_rate")
105        .desc("Simulator instruction rate (inst/s)")
106        .precision(0)
107        .prereq(simInsts)
108        ;
109
110    hostMemory
111        .name("host_mem_usage")
112        .desc("Number of bytes of host memory used")
113        .prereq(hostMemory)
114        ;
115
116    hostSeconds
117        .name("host_seconds")
118        .desc("Real time elapsed on the host")
119        .precision(2)
120        ;
121
122    hostTickRate
123        .name("host_tick_rate")
124        .desc("Simulator tick rate (ticks/s)")
125        .precision(0)
126        ;
127
128    simInsts = constant(0);
129    simTicks = scalar(curTick) - scalar(startTick);
130    simSeconds = simTicks / scalar(ticksPerSecond);
131    hostMemory = functor(memUsage);
132    hostSeconds = functor(statElapsedTime);
133    hostInstRate = simInsts / hostSeconds;
134    hostTickRate = simTicks / hostSeconds;
135
136    registerResetCallback(&simTicksReset);
137}
138
139class StatEvent : public Event
140{
141  protected:
142    int flags;
143    Tick repeat;
144
145  public:
146    StatEvent(int _flags, Tick _when, Tick _repeat);
147    virtual void process();
148    virtual const char *description();
149};
150
151StatEvent::StatEvent(int _flags, Tick _when, Tick _repeat)
152    : Event(&mainEventQueue, Stat_Event_Pri),
153      flags(_flags), repeat(_repeat)
154{
155    setFlags(AutoDelete);
156    schedule(_when);
157}
158
159const char *
160StatEvent::description()
161{
162    return "Statistics dump and/or reset";
163}
164
165void
166StatEvent::process()
167{
168    if (flags & Statistics::Dump)
169        DumpNow();
170
171    if (flags & Statistics::Reset)
172        reset();
173
174    if (repeat)
175        schedule(curTick + repeat);
176}
177
178list<Output *> OutputList;
179
180void
181DumpNow()
182{
183    list<Output *>::iterator i = OutputList.begin();
184    list<Output *>::iterator end = OutputList.end();
185    for (; i != end; ++i) {
186        Output *output = *i;
187        if (!output->valid())
188            continue;
189
190        output->output();
191    }
192}
193
194void
195SetupEvent(int flags, Tick when, Tick repeat)
196{
197    new StatEvent(flags, when, repeat);
198}
199
200/* namespace Statistics */ }
201
202extern "C" void
203debugDumpStats()
204{
205    Statistics::DumpNow();
206}
207
208