/*
+ * Copyright (c) 2012 ARM Limited
+ * All rights reserved
+ *
+ * The license below extends only to copyright in the software and shall
+ * not be construed as granting a license to any other intellectual
+ * property including but not limited to intellectual property relating
+ * to a hardware implementation of the functionality of the software
+ * licensed hereunder. You may use the software subject to the license
+ * terms below provided that you ensure that this notice is replicated
+ * unmodified and in its entirety in all distributions of the software,
+ * modified or unmodified, in source code or in binary form.
+ *
* Copyright (c) 2004-2005 The Regents of The University of Michigan
+ * Copyright (c) 2013 Advanced Micro Devices, Inc.
+ * Copyright (c) 2013 Mark D. Hill and David A. Wood
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* Authors: Nathan Binkert
+ * Sascha Bischoff
*/
// This file will contain default statistics for the simulator that
// don't really belong to a specific simulator object
+#include "sim/stat_control.hh"
+
#include <fstream>
#include <iostream>
#include <list>
#include "base/hostinfo.hh"
#include "base/statistics.hh"
#include "base/time.hh"
-
-#include "config/the_isa.hh"
-#if THE_ISA == NO_ISA
-#include "arch/noisa/cpu_dummy.hh"
-#else
#include "cpu/base.hh"
-#endif
-
-#include "sim/eventq.hh"
+#include "sim/global_event.hh"
using namespace std;
Stats::Formula simSeconds;
Stats::Value simTicks;
+Stats::Value finalTick;
Stats::Value simFreq;
namespace Stats {
Time statTime(true);
Tick startTick;
+GlobalEvent *dumpEvent;
+
struct SimTicksReset : public Callback
{
void process()
{
- statTime.set();
- startTick = curTick;
+ statTime.setTimer();
+ startTick = curTick();
}
};
double
statElapsedTime()
{
- Time now(true);
+ Time now;
+ now.setTimer();
+
Time elapsed = now - statTime;
- return elapsed();
+ return elapsed;
}
Tick
statElapsedTicks()
{
- return curTick - startTick;
+ return curTick() - startTick;
+}
+
+Tick
+statFinalTick()
+{
+ return curTick();
}
SimTicksReset simTicksReset;
struct Global
{
Stats::Formula hostInstRate;
+ Stats::Formula hostOpRate;
Stats::Formula hostTickRate;
Stats::Value hostMemory;
Stats::Value hostSeconds;
Stats::Value simInsts;
+ Stats::Value simOps;
Global();
};
Global::Global()
{
simInsts
- .functor(BaseCPU::numSimulatedInstructions)
+ .functor(BaseCPU::numSimulatedInsts)
.name("sim_insts")
.desc("Number of instructions simulated")
.precision(0)
.prereq(simInsts)
;
+ simOps
+ .functor(BaseCPU::numSimulatedOps)
+ .name("sim_ops")
+ .desc("Number of ops (including micro ops) simulated")
+ .precision(0)
+ .prereq(simOps)
+ ;
+
simSeconds
.name("sim_seconds")
.desc("Number of seconds simulated")
.desc("Number of ticks simulated")
;
+ finalTick
+ .functor(statFinalTick)
+ .name("final_tick")
+ .desc("Number of ticks from beginning of simulation "
+ "(restored from checkpoints and never reset)")
+ ;
+
hostInstRate
.name("host_inst_rate")
.desc("Simulator instruction rate (inst/s)")
.prereq(simInsts)
;
+ hostOpRate
+ .name("host_op_rate")
+ .desc("Simulator op (including micro ops) rate (op/s)")
+ .precision(0)
+ .prereq(simOps)
+ ;
+
hostMemory
.functor(memUsage)
.name("host_mem_usage")
simSeconds = simTicks / simFreq;
hostInstRate = simInsts / hostSeconds;
+ hostOpRate = simOps / hostSeconds;
hostTickRate = simTicks / hostSeconds;
registerResetCallback(&simTicksReset);
static Global global;
}
-class _StatEvent : public Event
+/**
+ * Event to dump and/or reset the statistics.
+ */
+class StatEvent : public GlobalEvent
{
private:
bool dump;
Tick repeat;
public:
- _StatEvent(bool _dump, bool _reset, Tick _repeat)
- : Event(Stat_Event_Pri), dump(_dump), reset(_reset), repeat(_repeat)
+ StatEvent(Tick _when, bool _dump, bool _reset, Tick _repeat)
+ : GlobalEvent(_when, Stat_Event_Pri, 0),
+ dump(_dump), reset(_reset), repeat(_repeat)
{
- setFlags(AutoDelete);
}
virtual void
Stats::reset();
if (repeat) {
- Event *event = new _StatEvent(dump, reset, repeat);
- mainEventQueue.schedule(event, curTick + repeat);
+ Stats::schedStatEvent(dump, reset, curTick() + repeat, repeat);
}
}
+
+ const char *description() const { return "GlobalStatEvent"; }
};
void
-StatEvent(bool dump, bool reset, Tick when, Tick repeat)
+schedStatEvent(bool dump, bool reset, Tick when, Tick repeat)
{
- Event *event = new _StatEvent(dump, reset, repeat);
- mainEventQueue.schedule(event, when);
+ // simQuantum is being added to the time when the stats would be
+ // dumped so as to ensure that this event happens only after the next
+ // sync amongst the event queues. Asingle event queue simulation
+ // should remain unaffected.
+ dumpEvent = new StatEvent(when + simQuantum, dump, reset, repeat);
+}
+
+void
+periodicStatDump(Tick period)
+{
+ /*
+ * If the period is set to 0, then we do not want to dump periodically,
+ * thus we deschedule the event. Else, if the period is not 0, but the event
+ * has already been scheduled, we need to get rid of the old event before we
+ * create a new one, as the old event will no longer be moved forward in the
+ * event that we resume from a checkpoint.
+ */
+ if (dumpEvent != NULL && (period == 0 || dumpEvent->scheduled())) {
+ // Event should AutoDelete, so we do not need to free it.
+ dumpEvent->deschedule();
+ }
+
+ /*
+ * If the period is not 0, we schedule the event. If this is called with a
+ * period that is less than the current tick, then we shift the first dump
+ * by curTick. This ensures that we do not schedule the event is the past.
+ */
+ if (period != 0) {
+ // Schedule the event
+ if (period >= curTick()) {
+ schedStatEvent(true, true, (Tick)period, (Tick)period);
+ } else {
+ schedStatEvent(true, true, (Tick)period + curTick(), (Tick)period);
+ }
+ }
+}
+
+void
+updateEvents()
+{
+ /*
+ * If the dumpEvent has been scheduled, but is scheduled in the past, then
+ * we need to shift the event to be at a valid point in time. Therefore, we
+ * shift the event by curTick.
+ */
+ if (dumpEvent != NULL &&
+ (dumpEvent->scheduled() && dumpEvent->when() < curTick())) {
+ // shift by curTick() and reschedule
+ Tick _when = dumpEvent->when();
+ dumpEvent->reschedule(_when + curTick());
+ }
}
-/* namespace Stats */ }
+} // namespace Stats
projects / gem5.git / blobdiff