stat_control.cc revision 2665 
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/str.hh"
42#include "base/time.hh"
43#include "base/stats/output.hh"
44#include "cpu/base.hh"
45#include "sim/eventq.hh"
46#include "sim/sim_object.hh"
47#include "sim/stat_control.hh"
48#include "sim/root.hh"
49
50using namespace std;
51
52Stats::Formula hostInstRate;
53Stats::Formula hostTickRate;
54Stats::Value hostMemory;
55Stats::Value hostSeconds;
56
57Stats::Value simTicks;
58Stats::Value simInsts;
59Stats::Value simFreq;
60Stats::Formula simSeconds;
61
62namespace Stats {
63
64Time statTime(true);
65Tick startTick;
66Tick lastDump(0);
67
68class SimTicksReset : public Callback
69{
70  public:
71    void process()
72    {
73        statTime.set();
74        startTick = curTick;
75    }
76};
77
78double
79statElapsedTime()
80{
81    Time now(true);
82    Time elapsed = now - statTime;
83    return elapsed();
84}
85
86Tick
87statElapsedTicks()
88{
89    return curTick - startTick;
90}
91
92SimTicksReset simTicksReset;
93
94void
95InitSimStats()
96{
97    simInsts
98        .functor(BaseCPU::numSimulatedInstructions)
99        .name("sim_insts")
100        .desc("Number of instructions simulated")
101        .precision(0)
102        .prereq(simInsts)
103        ;
104
105    simSeconds
106        .name("sim_seconds")
107        .desc("Number of seconds simulated")
108        ;
109
110    simFreq
111        .scalar(Clock::Frequency)
112        .name("sim_freq")
113        .desc("Frequency of simulated ticks")
114        ;
115
116    simTicks
117        .functor(statElapsedTicks)
118        .name("sim_ticks")
119        .desc("Number of ticks simulated")
120        ;
121
122    hostInstRate
123        .name("host_inst_rate")
124        .desc("Simulator instruction rate (inst/s)")
125        .precision(0)
126        .prereq(simInsts)
127        ;
128
129    hostMemory
130        .functor(memUsage)
131        .name("host_mem_usage")
132        .desc("Number of bytes of host memory used")
133        .prereq(hostMemory)
134        ;
135
136    hostSeconds
137        .functor(statElapsedTime)
138        .name("host_seconds")
139        .desc("Real time elapsed on the host")
140        .precision(2)
141        ;
142
143    hostTickRate
144        .name("host_tick_rate")
145        .desc("Simulator tick rate (ticks/s)")
146        .precision(0)
147        ;
148
149    simSeconds = simTicks / simFreq;
150    hostInstRate = simInsts / hostSeconds;
151    hostTickRate = simTicks / hostSeconds;
152
153    registerResetCallback(&simTicksReset);
154}
155
156class StatEvent : public Event
157{
158  protected:
159    int flags;
160    Tick repeat;
161
162  public:
163    StatEvent(int _flags, Tick _when, Tick _repeat);
164    virtual void process();
165    virtual const char *description();
166};
167
168StatEvent::StatEvent(int _flags, Tick _when, Tick _repeat)
169    : Event(&mainEventQueue, Stat_Event_Pri),
170      flags(_flags), repeat(_repeat)
171{
172    setFlags(AutoDelete);
173    schedule(_when);
174}
175
176const char *
177StatEvent::description()
178{
179    return "Statistics dump and/or reset";
180}
181
182void
183StatEvent::process()
184{
185    if (flags & Stats::Dump)
186        DumpNow();
187
188    if (flags & Stats::Reset)
189        reset();
190
191    if (repeat)
192        schedule(curTick + repeat);
193}
194
195list<Output *> OutputList;
196
197void
198DumpNow()
199{
200    assert(lastDump <= curTick);
201    if (lastDump == curTick)
202        return;
203    lastDump = curTick;
204
205    list<Output *>::iterator i = OutputList.begin();
206    list<Output *>::iterator end = OutputList.end();
207    for (; i != end; ++i) {
208        Output *output = *i;
209        if (!output->valid())
210            continue;
211
212        output->output();
213    }
214}
215
216void
217SetupEvent(int flags, Tick when, Tick repeat)
218{
219    new StatEvent(flags, when, repeat);
220}
221
222/* namespace Stats */ }
223
224extern "C" void
225debugDumpStats()
226{
227    Stats::DumpNow();
228}
229
230