gem5/src/sim/stat_control.cc
Andrew Bardsley c8b919aba2 style: Fix line continuation, especially in debug messages
This patch closes a number of space gaps in debug messages caused by
the incorrect use of line continuation within strings. (There's also
one consistency change to a similar, but correct, use of line
continuation)
2014-09-12 10:22:47 -04:00

302 lines
8.1 KiB
C++

/*
* 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
* 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.
*
* 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 <fstream>
#include <iostream>
#include <list>
#include "base/callback.hh"
#include "base/hostinfo.hh"
#include "base/statistics.hh"
#include "base/time.hh"
#include "cpu/base.hh"
#include "sim/global_event.hh"
#include "sim/stat_control.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.setTimer();
startTick = curTick();
}
};
double
statElapsedTime()
{
Time now;
now.setTimer();
Time elapsed = now - statTime;
return elapsed;
}
Tick
statElapsedTicks()
{
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::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")
;
simFreq
.scalar(SimClock::Frequency)
.name("sim_freq")
.desc("Frequency of simulated ticks")
;
simTicks
.functor(statElapsedTicks)
.name("sim_ticks")
.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)")
.precision(0)
.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")
.desc("Number of bytes of host memory used")
.prereq(hostMemory)
;
hostSeconds
.functor(statElapsedTime)
.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)
;
simSeconds = simTicks / simFreq;
hostInstRate = simInsts / hostSeconds;
hostOpRate = simOps / hostSeconds;
hostTickRate = simTicks / hostSeconds;
registerResetCallback(&simTicksReset);
}
void
initSimStats()
{
static Global global;
}
/**
* Event to dump and/or reset the statistics.
*/
class StatEvent : public GlobalEvent
{
private:
bool dump;
bool reset;
Tick repeat;
public:
StatEvent(Tick _when, bool _dump, bool _reset, Tick _repeat)
: GlobalEvent(_when, Stat_Event_Pri, 0),
dump(_dump), reset(_reset), repeat(_repeat)
{
}
virtual void
process()
{
if (dump)
Stats::dump();
if (reset)
Stats::reset();
if (repeat) {
Stats::schedStatEvent(dump, reset, curTick() + repeat, repeat);
}
}
const char *description() const { return "GlobalStatEvent"; }
};
void
schedStatEvent(bool dump, bool reset, Tick when, Tick repeat)
{
// 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