stat_control.cc revision 3125:febd811bccc6
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(EventQueue *queue, int _flags, Tick _when, Tick _repeat); 164 virtual void process(); 165 virtual const char *description(); 166}; 167 168StatEvent::StatEvent(EventQueue *queue, int _flags, Tick _when, Tick _repeat) 169 : Event(queue, 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 cprintf("Resetting stats!\n"); 190 reset(); 191 } 192 193 if (repeat) 194 schedule(curTick + repeat); 195} 196 197list<Output *> OutputList; 198 199void 200DumpNow() 201{ 202 assert(lastDump <= curTick); 203 if (lastDump == curTick) 204 return; 205 lastDump = curTick; 206 207 list<Output *>::iterator i = OutputList.begin(); 208 list<Output *>::iterator end = OutputList.end(); 209 for (; i != end; ++i) { 210 Output *output = *i; 211 if (!output->valid()) 212 continue; 213 214 output->output(); 215 } 216} 217 218void 219SetupEvent(int flags, Tick when, Tick repeat, EventQueue *queue) 220{ 221 if (queue == NULL) 222 queue = &mainEventQueue; 223 224 new StatEvent(queue, flags, when, repeat); 225} 226 227/* namespace Stats */ } 228 229void debugDumpStats() 230{ 231 Stats::DumpNow(); 232} 233 234