gem5/kern/kernel_stats.cc
Erik Hallnor 800d970c26 few more stat items to serialize
kern/kernel_stats.cc:
    Few more items to serialize

--HG--
extra : convert_revision : b816512735928cbde0b24bf8cb48deec9fb26413
2004-10-02 12:43:59 -04:00

315 lines
8 KiB
C++

/*
* 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.
*/
#include <map>
#include <stack>
#include <string>
#include "arch/alpha/osfpal.hh"
#include "base/trace.hh"
#include "base/statistics.hh"
#include "base/stats/bin.hh"
#include "cpu/exec_context.hh"
#include "cpu/pc_event.hh"
#include "cpu/static_inst.hh"
#include "kern/kernel_stats.hh"
#include "kern/linux/linux_syscalls.hh"
using namespace std;
using namespace Stats;
namespace Kernel {
const char *modestr[] = { "kernel", "user", "idle", "interrupt" };
Statistics::Statistics(ExecContext *context)
: xc(context), idleProcess((Addr)-1), themode(kernel), lastModeTick(0),
iplLast(0), iplLastTick(0)
{
bin_int = xc->system->params->bin_int;
}
void
Statistics::regStats(const string &_name)
{
myname = _name;
_arm
.name(name() + ".inst.arm")
.desc("number of arm instructions executed")
;
_quiesce
.name(name() + ".inst.quiesce")
.desc("number of quiesce instructions executed")
;
_ivlb
.name(name() + ".inst.ivlb")
.desc("number of ivlb instructions executed")
;
_ivle
.name(name() + ".inst.ivle")
.desc("number of ivle instructions executed")
;
_hwrei
.name(name() + ".inst.hwrei")
.desc("number of hwrei instructions executed")
;
_iplCount
.init(32)
.name(name() + ".ipl_count")
.desc("number of times we switched to this ipl")
.flags(total | pdf | nozero | nonan)
;
_iplGood
.init(32)
.name(name() + ".ipl_good")
.desc("number of times we switched to this ipl from a different ipl")
.flags(total | pdf | nozero | nonan)
;
_iplTicks
.init(32)
.name(name() + ".ipl_ticks")
.desc("number of cycles we spent at this ipl")
.flags(total | pdf | nozero | nonan)
;
_iplUsed
.name(name() + ".ipl_used")
.desc("fraction of swpipl calls that actually changed the ipl")
.flags(total | nozero | nonan)
;
_iplUsed = _iplGood / _iplCount;
_callpal
.init(256)
.name(name() + ".callpal")
.desc("number of callpals executed")
.flags(total | pdf | nozero | nonan)
;
for (int i = 0; i < PAL::NumCodes; ++i) {
const char *str = PAL::name(i);
if (str)
_callpal.subname(i, str);
}
_syscall
.init(SystemCalls<Tru64>::Number)
.name(name() + ".syscall")
.desc("number of syscalls executed")
.flags(total | pdf | nozero | nonan)
;
for (int i = 0; i < SystemCalls<Tru64>::Number; ++i) {
const char *str = SystemCalls<Tru64>::name(i);
if (str) {
_syscall.subname(i, str);
}
}
_faults
.init(Num_Faults)
.name(name() + ".faults")
.desc("number of faults")
.flags(total | pdf | nozero | nonan)
;
for (int i = 1; i < Num_Faults; ++i) {
const char *str = FaultName(i);
if (str)
_faults.subname(i, str);
}
_mode
.init(cpu_mode_num)
.name(name() + ".mode_switch")
.desc("number of protection mode switches")
;
for (int i = 0; i < cpu_mode_num; ++i)
_mode.subname(i, modestr[i]);
_modeGood
.init(cpu_mode_num)
.name(name() + ".mode_good")
;
for (int i = 0; i < cpu_mode_num; ++i)
_modeGood.subname(i, modestr[i]);
_modeFraction
.name(name() + ".mode_switch_good")
.desc("fraction of useful protection mode switches")
.flags(total)
;
for (int i = 0; i < cpu_mode_num; ++i)
_modeFraction.subname(i, modestr[i]);
_modeFraction = _modeGood / _mode;
_modeTicks
.init(cpu_mode_num)
.name(name() + ".mode_ticks")
.desc("number of ticks spent at the given mode")
.flags(pdf)
;
for (int i = 0; i < cpu_mode_num; ++i)
_modeTicks.subname(i, modestr[i]);
_swap_context
.name(name() + ".swap_context")
.desc("number of times the context was actually changed")
;
}
void
Statistics::setIdleProcess(Addr idlepcbb)
{
assert(themode == kernel || themode == interrupt);
idleProcess = idlepcbb;
themode = idle;
changeMode(themode);
}
void
Statistics::changeMode(cpu_mode newmode)
{
_mode[newmode]++;
if (newmode == themode)
return;
DPRINTF(Context, "old mode=%-8s new mode=%-8s\n",
modestr[themode], modestr[newmode]);
_modeGood[newmode]++;
_modeTicks[themode] += curTick - lastModeTick;
xc->system->kernelBinning->changeMode(newmode);
lastModeTick = curTick;
themode = newmode;
}
void
Statistics::swpipl(int ipl)
{
assert(ipl >= 0 && ipl <= 0x1f && "invalid IPL\n");
_iplCount[ipl]++;
if (ipl == iplLast)
return;
_iplGood[ipl]++;
_iplTicks[iplLast] += curTick - iplLastTick;
iplLastTick = curTick;
iplLast = ipl;
}
void
Statistics::mode(cpu_mode newmode)
{
Addr pcbb = xc->regs.ipr[AlphaISA::IPR_PALtemp23];
if ((newmode == kernel || newmode == interrupt) &&
pcbb == idleProcess)
newmode = idle;
if (bin_int == false && newmode == interrupt)
newmode = kernel;
changeMode(newmode);
}
void
Statistics::context(Addr oldpcbb, Addr newpcbb)
{
assert(themode != user);
_swap_context++;
changeMode(newpcbb == idleProcess ? idle : kernel);
}
void
Statistics::callpal(int code)
{
if (!PAL::name(code))
return;
_callpal[code]++;
switch (code) {
case PAL::callsys: {
int number = xc->regs.intRegFile[0];
if (SystemCalls<Tru64>::validSyscallNumber(number)) {
int cvtnum = SystemCalls<Tru64>::convert(number);
_syscall[cvtnum]++;
}
} break;
case PAL::swpctx:
if (xc->system->kernelBinning)
xc->system->kernelBinning->palSwapContext(xc);
break;
}
}
void
Statistics::serialize(ostream &os)
{
int exemode = themode;
SERIALIZE_SCALAR(exemode);
SERIALIZE_SCALAR(idleProcess);
SERIALIZE_SCALAR(iplLast);
SERIALIZE_SCALAR(iplLastTick);
SERIALIZE_SCALAR(lastModeTick);
}
void
Statistics::unserialize(Checkpoint *cp, const string &section)
{
int exemode;
UNSERIALIZE_SCALAR(exemode);
UNSERIALIZE_SCALAR(idleProcess);
UNSERIALIZE_SCALAR(iplLast);
UNSERIALIZE_SCALAR(iplLastTick);
UNSERIALIZE_SCALAR(lastModeTick);
themode = (cpu_mode)exemode;
}
/* end namespace Kernel */ }