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 "cpu/base.hh"
  43 #include "sim/eventq.hh"
  44
  45 using namespace std;
  46
  47 Stats::Formula hostInstRate;
  48 Stats::Formula hostTickRate;
  49 Stats::Value hostMemory;
  50 Stats::Value hostSeconds;
  51
  52 Stats::Value simTicks;
  53 Stats::Value simInsts;
  54 Stats::Value simFreq;
  55 Stats::Formula simSeconds;
  56
  57 namespace Stats {
  58
  59 Time statTime(true);
  60 Tick startTick;
  61
  62 struct SimTicksReset : public Callback
  63 {
  64     void process()
  65     {
  66         statTime.set();
  67         startTick = curTick;
  68     }
  69 };
  70
  71 double
  72 statElapsedTime()
  73 {
  74     Time now(true);
  75     Time elapsed = now - statTime;
  76     return elapsed();
  77 }
  78
  79 Tick
  80 statElapsedTicks()
  81 {
  82     return curTick - startTick;
  83 }
  84
  85 SimTicksReset simTicksReset;
  86
  87 void
  88 initSimStats()
  89 {
  90     simInsts
  91         .functor(BaseCPU::numSimulatedInstructions)
  92         .name("sim_insts")
  93         .desc("Number of instructions simulated")
  94         .precision(0)
  95         .prereq(simInsts)
  96         ;
  97
  98     simSeconds
  99         .name("sim_seconds")
 100         .desc("Number of seconds simulated")
 101         ;
 102
 103     simFreq
 104         .scalar(Clock::Frequency)
 105         .name("sim_freq")
 106         .desc("Frequency of simulated ticks")
 107         ;
 108
 109     simTicks
 110         .functor(statElapsedTicks)
 111         .name("sim_ticks")
 112         .desc("Number of ticks simulated")
 113         ;
 114
 115     hostInstRate
 116         .name("host_inst_rate")
 117         .desc("Simulator instruction rate (inst/s)")
 118         .precision(0)
 119         .prereq(simInsts)
 120         ;
 121
 122     hostMemory
 123         .functor(memUsage)
 124         .name("host_mem_usage")
 125         .desc("Number of bytes of host memory used")
 126         .prereq(hostMemory)
 127         ;
 128
 129     hostSeconds
 130         .functor(statElapsedTime)
 131         .name("host_seconds")
 132         .desc("Real time elapsed on the host")
 133         .precision(2)
 134         ;
 135
 136     hostTickRate
 137         .name("host_tick_rate")
 138         .desc("Simulator tick rate (ticks/s)")
 139         .precision(0)
 140         ;
 141
 142     simSeconds = simTicks / simFreq;
 143     hostInstRate = simInsts / hostSeconds;
 144     hostTickRate = simTicks / hostSeconds;
 145
 146     registerResetCallback(&simTicksReset);
 147 }
 148
 149 class _StatEvent : public Event
 150 {
 151   private:
 152     bool dump;
 153     bool reset;
 154     Tick repeat;
 155
 156   public:
 157     _StatEvent(bool _dump, bool _reset, Tick _repeat)
 158         : Event(Stat_Event_Pri), dump(_dump), reset(_reset), repeat(_repeat)
 159     {
 160         setFlags(AutoDelete);
 161     }
 162
 163     virtual void
 164     process()
 165     {
 166         if (dump)
 167             Stats::dump();
 168
 169         if (reset)
 170             Stats::reset();
 171
 172         if (repeat) {
 173             Event *event = new _StatEvent(dump, reset, repeat);
 174             mainEventQueue.schedule(event, curTick + repeat);
 175         }
 176     }
 177 };
 178
 179 void
 180 StatEvent(bool dump, bool reset, Tick when, Tick repeat)
 181 {
 182     Event *event = new _StatEvent(dump, reset, repeat);
 183     mainEventQueue.schedule(event, when);
 184 }
 185
 186 /* namespace Stats */ }