sim/stat_control.cc

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