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-rw-r--r--src/kern/kernel_stats.cc299
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diff --git a/src/kern/kernel_stats.cc b/src/kern/kernel_stats.cc
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+/*
+ * Copyright (c) 2004-2005 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 "cpu/exec_context.hh"
+#include "kern/kernel_stats.hh"
+#include "kern/tru64/tru64_syscalls.hh"
+#include "sim/system.hh"
+
+using namespace std;
+using namespace Stats;
+
+namespace Kernel {
+
+const char *modestr[] = { "kernel", "user", "idle", "interrupt" };
+
+Statistics::Statistics(System *system)
+ : idleProcess((Addr)-1), themode(kernel), lastModeTick(0),
+ iplLast(0), iplLastTick(0)
+{
+ bin_int = 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);
+ }
+ }
+
+ _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, ExecContext *xc)
+{
+ assert(themode == kernel || themode == interrupt);
+ idleProcess = idlepcbb;
+ themode = idle;
+ changeMode(themode, xc);
+}
+
+void
+Statistics::changeMode(cpu_mode newmode, ExecContext *xc)
+{
+ _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->getSystemPtr()->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, ExecContext *xc)
+{
+ Addr pcbb = xc->readMiscReg(AlphaISA::IPR_PALtemp23);
+
+ if ((newmode == kernel || newmode == interrupt) &&
+ pcbb == idleProcess)
+ newmode = idle;
+
+ if (bin_int == false && newmode == interrupt)
+ newmode = kernel;
+
+ changeMode(newmode, xc);
+}
+
+void
+Statistics::context(Addr oldpcbb, Addr newpcbb, ExecContext *xc)
+{
+ assert(themode != user);
+
+ _swap_context++;
+ changeMode(newpcbb == idleProcess ? idle : kernel, xc);
+}
+
+void
+Statistics::callpal(int code, ExecContext *xc)
+{
+ if (!PAL::name(code))
+ return;
+
+ _callpal[code]++;
+
+ switch (code) {
+ case PAL::callsys: {
+ int number = xc->readIntReg(0);
+ if (SystemCalls<Tru64>::validSyscallNumber(number)) {
+ int cvtnum = SystemCalls<Tru64>::convert(number);
+ _syscall[cvtnum]++;
+ }
+ } break;
+
+ case PAL::swpctx:
+ if (xc->getSystemPtr()->kernelBinning)
+ xc->getSystemPtr()->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 */ }
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