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Diffstat (limited to 'sim/stat_control.cc')
| -rw-r--r-- | sim/stat_control.cc | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/sim/stat_control.cc b/sim/stat_control.cc new file mode 100644 index 000000000..d6d7e2c91 --- /dev/null +++ b/sim/stat_control.cc @@ -0,0 +1,207 @@ +/* + * Copyright (c) 2003 The Regents of The University of Michigan + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer; + * redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution; + * neither the name of the copyright holders nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +// This file will contain default statistics for the simulator that +// don't really belong to a specific simulator object + +#include <fstream> +#include <iostream> +#include <list> + +#include "base/callback.hh" +#include "base/hostinfo.hh" +#include "base/statistics.hh" +#include "base/str.hh" +#include "base/time.hh" +#include "base/stats/output.hh" +#include "sim/eventq.hh" +#include "sim/sim_object.hh" +#include "sim/stat_control.hh" +#include "sim/universe.hh" + +using namespace std; + +Statistics::Formula hostInstRate; +Statistics::Formula hostMemory; +Statistics::Formula hostSeconds; +Statistics::Formula hostTickRate; + +Statistics::Formula simInsts; +Statistics::Formula simSeconds; +Statistics::Formula simTicks; + +namespace Statistics { + +Time statTime(true); +Tick startTick; + +class SimTicksReset : public Callback +{ + public: + void process() + { + statTime.set(); + startTick = curTick; + } +}; + +double +statElapsedTime() +{ + Time now(true); + Time elapsed = now - statTime; + return elapsed(); +} + +SimTicksReset simTicksReset; + +void +InitSimStats() +{ + simInsts + .name("sim_insts") + .desc("Number of instructions simulated") + .precision(0) + .prereq(simInsts) + ; + + simSeconds + .name("sim_seconds") + .desc("Number of seconds simulated") + ; + + simTicks + .name("sim_ticks") + .desc("Number of ticks simulated") + ; + + hostInstRate + .name("host_inst_rate") + .desc("Simulator instruction rate (inst/s)") + .precision(0) + .prereq(simInsts) + ; + + hostMemory + .name("host_mem_usage") + .desc("Number of bytes of host memory used") + .prereq(hostMemory) + ; + + hostSeconds + .name("host_seconds") + .desc("Real time elapsed on the host") + .precision(2) + ; + + hostTickRate + .name("host_tick_rate") + .desc("Simulator tick rate (ticks/s)") + .precision(0) + ; + + simInsts = constant(0); + simTicks = scalar(curTick) - scalar(startTick); + simSeconds = simTicks / scalar(ticksPerSecond); + hostMemory = functor(memUsage); + hostSeconds = functor(statElapsedTime); + hostInstRate = simInsts / hostSeconds; + hostTickRate = simTicks / hostSeconds; + + registerResetCallback(&simTicksReset); +} + +class StatEvent : public Event +{ + protected: + int flags; + Tick repeat; + + public: + StatEvent(int _flags, Tick _when, Tick _repeat); + virtual void process(); + virtual const char *description(); +}; + +StatEvent::StatEvent(int _flags, Tick _when, Tick _repeat) + : Event(&mainEventQueue, Stat_Event_Pri), + flags(_flags), repeat(_repeat) +{ + setFlags(AutoDelete); + schedule(_when); +} + +const char * +StatEvent::description() +{ + return "Statistics dump and/or reset"; +} + +void +StatEvent::process() +{ + if (flags & Statistics::Dump) + DumpNow(); + + if (flags & Statistics::Reset) + reset(); + + if (repeat) + schedule(curTick + repeat); +} + +list<Output *> OutputList; + +void +DumpNow() +{ + list<Output *>::iterator i = OutputList.begin(); + list<Output *>::iterator end = OutputList.end(); + for (; i != end; ++i) { + Output *output = *i; + if (!output->valid()) + continue; + + output->output(); + } +} + +void +SetupEvent(int flags, Tick when, Tick repeat) +{ + new StatEvent(flags, when, repeat); +} + +/* namespace Statistics */ } + +extern "C" void +debugDumpStats() +{ + Statistics::DumpNow(); +} + |