src/sim/stat_control.cc

   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 "config/the_isa.hh"
  43 #if THE_ISA == NO_ISA
  44 #include "arch/noisa/cpu_dummy.hh"
  45 #else
  46 #include "cpu/base.hh"
  47 #endif
  48
  49 #include "sim/eventq.hh"
  50 #include "sim/stat_control.hh"
  51
  52 using namespace std;
  53
  54 Stats::Formula simSeconds;
  55 Stats::Value simTicks;
  56 Stats::Value finalTick;
  57 Stats::Value simFreq;
  58
  59 namespace Stats {
  60
  61 Time statTime(true);
  62 Tick startTick;
  63
  64 struct SimTicksReset : public Callback
  65 {
  66     void process()
  67     {
  68         statTime.setTimer();
  69         startTick = curTick();
  70     }
  71 };
  72
  73 double
  74 statElapsedTime()
  75 {
  76     Time now;
  77     now.setTimer();
  78
  79     Time elapsed = now - statTime;
  80     return elapsed;
  81 }
  82
  83 Tick
  84 statElapsedTicks()
  85 {
  86     return curTick() - startTick;
  87 }
  88
  89 Tick
  90 statFinalTick()
  91 {
  92     return curTick();
  93 }
  94
  95 SimTicksReset simTicksReset;
  96
  97 struct Global
  98 {
  99     Stats::Formula hostInstRate;
 100     Stats::Formula hostOpRate;
 101     Stats::Formula hostTickRate;
 102     Stats::Value hostMemory;
 103     Stats::Value hostSeconds;
 104
 105     Stats::Value simInsts;
 106     Stats::Value simOps;
 107
 108     Global();
 109 };
 110
 111 Global::Global()
 112 {
 113     simInsts
 114         .functor(BaseCPU::numSimulatedInsts)
 115         .name("sim_insts")
 116         .desc("Number of instructions simulated")
 117         .precision(0)
 118         .prereq(simInsts)
 119         ;
 120
 121     simOps
 122         .functor(BaseCPU::numSimulatedOps)
 123         .name("sim_ops")
 124         .desc("Number of ops (including micro ops) simulated")
 125         .precision(0)
 126         .prereq(simOps)
 127         ;
 128
 129     simSeconds
 130         .name("sim_seconds")
 131         .desc("Number of seconds simulated")
 132         ;
 133
 134     simFreq
 135         .scalar(SimClock::Frequency)
 136         .name("sim_freq")
 137         .desc("Frequency of simulated ticks")
 138         ;
 139
 140     simTicks
 141         .functor(statElapsedTicks)
 142         .name("sim_ticks")
 143         .desc("Number of ticks simulated")
 144         ;
 145
 146     finalTick
 147         .functor(statFinalTick)
 148         .name("final_tick")
 149         .desc("Number of ticks from beginning of simulation \
 150 (restored from checkpoints and never reset)")
 151         ;
 152
 153     hostInstRate
 154         .name("host_inst_rate")
 155         .desc("Simulator instruction rate (inst/s)")
 156         .precision(0)
 157         .prereq(simInsts)
 158         ;
 159
 160     hostOpRate
 161         .name("host_op_rate")
 162         .desc("Simulator op (including micro ops) rate (op/s)")
 163         .precision(0)
 164         .prereq(simOps)
 165         ;
 166
 167     hostMemory
 168         .functor(memUsage)
 169         .name("host_mem_usage")
 170         .desc("Number of bytes of host memory used")
 171         .prereq(hostMemory)
 172         ;
 173
 174     hostSeconds
 175         .functor(statElapsedTime)
 176         .name("host_seconds")
 177         .desc("Real time elapsed on the host")
 178         .precision(2)
 179         ;
 180
 181     hostTickRate
 182         .name("host_tick_rate")
 183         .desc("Simulator tick rate (ticks/s)")
 184         .precision(0)
 185         ;
 186
 187     simSeconds = simTicks / simFreq;
 188     hostInstRate = simInsts / hostSeconds;
 189     hostOpRate = simOps / hostSeconds;
 190     hostTickRate = simTicks / hostSeconds;
 191
 192     registerResetCallback(&simTicksReset);
 193 }
 194
 195 void
 196 initSimStats()
 197 {
 198     static Global global;
 199 }
 200
 201 class StatEvent : public Event
 202 {
 203   private:
 204     bool dump;
 205     bool reset;
 206     Tick repeat;
 207
 208   public:
 209     StatEvent(bool _dump, bool _reset, Tick _repeat)
 210         : Event(Stat_Event_Pri, AutoDelete),
 211           dump(_dump), reset(_reset), repeat(_repeat)
 212     {
 213     }
 214
 215     virtual void
 216     process()
 217     {
 218         if (dump)
 219             Stats::dump();
 220
 221         if (reset)
 222             Stats::reset();
 223
 224         if (repeat) {
 225             Stats::schedStatEvent(dump, reset, curTick() + repeat, repeat);
 226         }
 227     }
 228 };
 229
 230 void
 231 schedStatEvent(bool dump, bool reset, Tick when, Tick repeat)
 232 {
 233     Event *event = new StatEvent(dump, reset, repeat);
 234     mainEventQueue.schedule(event, when);
 235 }
 236
 237 } // namespace Stats