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
  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
  52 using namespace std;
  53
  54 Stats::Formula simSeconds;
  55 Stats::Value simTicks;
  56 Stats::Value simFreq;
  57
  58 namespace Stats {
  59
  60 Time statTime(true);
  61 Tick startTick;
  62
  63 struct SimTicksReset : public Callback
  64 {
  65     void process()
  66     {
  67         statTime.set();
  68         startTick = curTick;
  69     }
  70 };
  71
  72 double
  73 statElapsedTime()
  74 {
  75     Time now(true);
  76     Time elapsed = now - statTime;
  77     return elapsed();
  78 }
  79
  80 Tick
  81 statElapsedTicks()
  82 {
  83     return curTick - startTick;
  84 }
  85
  86 SimTicksReset simTicksReset;
  87
  88 struct 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
 100 Global::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
 161 void
 162 initSimStats()
 163 {
 164     static Global global;
 165 }
 166
 167 class _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
 197 void
 198 StatEvent(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 */ }