From 22fe77f2283c130a1746c68d1ed63f2a242390a5 Mon Sep 17 00:00:00 2001 From: Lisa Hsu Date: Thu, 10 Jun 2004 01:02:33 -0400 Subject: lif kernelt stats out of tru64 directory cpu/exec_context.hh: change this to reflect the lifted kernel stats file. --HG-- extra : convert_revision : 0dda3babdf51ee7a57430af69c7e20322b4eb622 --- kern/kernel_stats.cc | 391 +++++++++++++++++++++++++++++++++++++++++++++++++++ kern/kernel_stats.hh | 63 +++++++++ 2 files changed, 454 insertions(+) create mode 100644 kern/kernel_stats.cc create mode 100644 kern/kernel_stats.hh (limited to 'kern') diff --git a/kern/kernel_stats.cc b/kern/kernel_stats.cc new file mode 100644 index 000000000..de944329a --- /dev/null +++ b/kern/kernel_stats.cc @@ -0,0 +1,391 @@ +/* + * 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 +#include +#include + +#include "base/statistics.hh" +#include "base/trace.hh" +#include "cpu/exec_context.hh" +#include "kern/kernel_stats.hh" +#include "sim/stats.hh" +#include "sim/sw_context.hh" +#include "targetarch/isa_traits.hh" +#include "targetarch/osfpal.hh" +#include "targetarch/syscalls.hh" + +using namespace std; +using namespace Stats; + +class KSData +{ + private: + string _name; + ExecContext *xc; + BaseCPU *cpu; + + public: + KSData(ExecContext *_xc, BaseCPU *_cpu) + : xc(_xc), cpu(_cpu), iplLast(0), iplLastTick(0), lastUser(false), + lastModeTick(0) + {} + + const string &name() { return _name; } + void regStats(const string &name); + + public: + Scalar<> _arm; + Scalar<> _quiesce; + Scalar<> _ivlb; + Scalar<> _ivle; + Scalar<> _hwrei; + + Vector<> _iplCount; + Vector<> _iplGood; + Vector<> _iplTicks; + Formula _iplUsed; + + Vector<> _callpal; + Vector<> _syscall; + Vector<> _faults; + + Vector<> _mode; + Vector<> _modeGood; + Formula _modeFraction; + Vector<> _modeTicks; + + Scalar<> _swap_context; + + private: + int iplLast; + Tick iplLastTick; + + bool lastUser; + Tick lastModeTick; + + public: + void swpipl(int ipl); + void mode(bool user); + void callpal(int code); +}; + +KernelStats::KernelStats(ExecContext *xc, BaseCPU *cpu) +{ data = new KSData(xc, cpu); } + +KernelStats::~KernelStats() +{ delete data; } + +void +KernelStats::regStats(const string &name) +{ data->regStats(name); } + +void +KSData::regStats(const string &name) +{ + _name = 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::Number) + .name(name + ".syscall") + .desc("number of syscalls executed") + .flags(total | pdf | nozero | nonan) + ; + + for (int i = 0; i < SystemCalls::Number; ++i) { + const char *str = SystemCalls::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(2) + .name(name + ".mode_switch") + .subname(0, "kernel") + .subname(1, "user") + .desc("number of protection mode switches") + ; + + _modeGood + .init(2) + ; + + _modeFraction + .name(name + ".mode_switch_good") + .subname(0, "kernel") + .subname(1, "user") + .desc("fraction of useful protection mode switches") + .flags(total) + ; + _modeFraction = _modeGood / _mode; + + _modeTicks + .init(2) + .name(name + ".mode_ticks") + .subname(0, "kernel") + .subname(1, "user") + .desc("number of ticks spent at the given mode") + .flags(pdf) + ; + + _swap_context + .name(name + ".swap_context") + .desc("number of times the context was actually changed") + ; +} + +void +KernelStats::arm() +{ data->_arm++; } + +void +KernelStats::quiesce() +{ data->_quiesce++; } + +void +KernelStats::ivlb() +{ data->_ivlb++; } + +void +KernelStats::ivle() +{ data->_ivle++; } + +void +KernelStats::hwrei() +{ data->_hwrei++; } + +void +KernelStats::fault(Fault fault) +{ data->_faults[fault]++; } + +void +KernelStats::swpipl(int ipl) +{ data->swpipl(ipl); } + +void +KernelStats::mode(bool user) +{ data->mode(user); } + +void +KernelStats::context(Addr old_pcbb, Addr new_pcbb) +{ data->_swap_context++; } + +void +KernelStats::callpal(int code) +{ data->callpal(code); } + + +void +KSData::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 +KSData::mode(bool user) +{ + _mode[user]++; + if (user == lastUser) + return; + + _modeGood[user]++; + _modeTicks[lastUser] += curTick - lastModeTick; + + lastModeTick = curTick; + lastUser = user; + + if (xc->system->bin) { + if (!xc->swCtx || xc->swCtx->callStack.empty()) { + if (user) + xc->system->User->activate(); + else + xc->system->Kernel->activate(); + } + } +} + +void +KSData::callpal(int code) +{ + if (!PAL::name(code)) + return; + + _callpal[code]++; + + switch (code) { + case PAL::callsys: + { + int number = xc->regs.intRegFile[0]; + if (SystemCalls::validSyscallNumber(number)) { + int cvtnum = SystemCalls::convert(number); + _syscall[cvtnum]++; + } + } + break; + } + + if (code == PAL::swpctx) { + SWContext *out = xc->swCtx; + System *sys = xc->system; + if (!sys->bin) + return; + DPRINTF(TCPIP, "swpctx event\n"); + if (out) { + DPRINTF(TCPIP, "swapping context out with this stack!\n"); + xc->system->dumpState(xc); + Addr oldPCB = xc->regs.ipr[TheISA::IPR_PALtemp23]; + + if (out->callStack.empty()) { + DPRINTF(TCPIP, "but removing it, cuz empty!\n"); + SWContext *find = sys->findContext(oldPCB); + if (find) { + assert(sys->findContext(oldPCB) == out); + sys->remContext(oldPCB); + } + delete out; + } else { + DPRINTF(TCPIP, "switching out context with pcb %#x, top fn %s\n", + oldPCB, out->callStack.top()->name); + if (!sys->findContext(oldPCB)) { + if (!sys->addContext(oldPCB, out)) + panic("could not add context"); + } + } + } + + Addr newPCB = xc->regs.intRegFile[16]; + SWContext *in = sys->findContext(newPCB); + xc->swCtx = in; + + if (in) { + assert(!in->callStack.empty() && + "should not be switching in empty context"); + DPRINTF(TCPIP, "swapping context in with this callstack!\n"); + xc->system->dumpState(xc); + sys->remContext(newPCB); + fnCall *top = in->callStack.top(); + DPRINTF(TCPIP, "switching in to pcb %#x, %s\n", newPCB, top->name); + assert(top->myBin && "should not switch to context with no Bin"); + top->myBin->activate(); + } else { + sys->Kernel->activate(); + } + DPRINTF(TCPIP, "end swpctx\n"); + } +} diff --git a/kern/kernel_stats.hh b/kern/kernel_stats.hh new file mode 100644 index 000000000..497403762 --- /dev/null +++ b/kern/kernel_stats.hh @@ -0,0 +1,63 @@ +/* + * 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. + */ + +#ifndef __KERNEL_STATS_HH__ +#define __KERNEL_STATS_HH__ + +#include + +class KSData; +class ExecContext; +class BaseCPU; +enum Fault; + +class KernelStats +{ + private: + KSData *data; + + public: + KernelStats(ExecContext *_xc, BaseCPU *_cpu); + ~KernelStats(); + + void regStats(const std::string &name); + + void arm(); + void quiesce(); + void ivlb(); + void ivle(); + void hwrei(); + + void fault(Fault fault); + void swpipl(int ipl); + void mode(bool user); + void context(Addr old_pcbb, Addr new_pcbb); + void callpal(int code); +}; + +#endif // __KERNEL_STATS_HH__ -- cgit v1.2.3