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-rw-r--r--kern/kernel_stats.cc311
1 files changed, 111 insertions, 200 deletions
diff --git a/kern/kernel_stats.cc b/kern/kernel_stats.cc
index e6bcb4d29..c8c04e6d1 100644
--- a/kern/kernel_stats.cc
+++ b/kern/kernel_stats.cc
@@ -30,134 +30,82 @@
#include <stack>
#include <string>
-#include "base/statistics.hh"
+#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 "sim/stats.hh"
-#include "sim/sw_context.hh"
-#include "targetarch/isa_traits.hh"
-#include "targetarch/osfpal.hh"
-#include "targetarch/syscalls.hh"
+#include "kern/linux/linux_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; }
+namespace Kernel {
-void
-KernelStats::regStats(const string &name)
-{ data->regStats(name); }
+const char *modestr[] = { "kernel", "user", "idle" };
+
+Statistics::Statistics(ExecContext *context)
+ : xc(context), idleProcess((Addr)-1), themode(kernel), lastModeTick(0),
+ iplLast(0), iplLastTick(0)
+{
+}
void
-KSData::regStats(const string &name)
+Statistics::regStats(const string &_name)
{
- _name = name;
+ myname = _name;
_arm
- .name(name + ".inst.arm")
+ .name(name() + ".inst.arm")
.desc("number of arm instructions executed")
;
_quiesce
- .name(name + ".inst.quiesce")
+ .name(name() + ".inst.quiesce")
.desc("number of quiesce instructions executed")
;
_ivlb
- .name(name + ".inst.ivlb")
+ .name(name() + ".inst.ivlb")
.desc("number of ivlb instructions executed")
;
_ivle
- .name(name + ".inst.ivle")
+ .name(name() + ".inst.ivle")
.desc("number of ivle instructions executed")
;
_hwrei
- .name(name + ".inst.hwrei")
+ .name(name() + ".inst.hwrei")
.desc("number of hwrei instructions executed")
;
_iplCount
.init(32)
- .name(name + ".ipl_count")
+ .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")
+ .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")
+ .name(name() + ".ipl_ticks")
.desc("number of cycles we spent at this ipl")
.flags(total | pdf | nozero | nonan)
;
_iplUsed
- .name(name + ".ipl_used")
+ .name(name() + ".ipl_used")
.desc("fraction of swpipl calls that actually changed the ipl")
.flags(total | nozero | nonan)
;
@@ -166,7 +114,7 @@ KSData::regStats(const string &name)
_callpal
.init(256)
- .name(name + ".callpal")
+ .name(name() + ".callpal")
.desc("number of callpals executed")
.flags(total | pdf | nozero | nonan)
;
@@ -179,7 +127,7 @@ KSData::regStats(const string &name)
_syscall
.init(SystemCalls<Tru64>::Number)
- .name(name + ".syscall")
+ .name(name() + ".syscall")
.desc("number of syscalls executed")
.flags(total | pdf | nozero | nonan)
;
@@ -193,7 +141,7 @@ KSData::regStats(const string &name)
_faults
.init(Num_Faults)
- .name(name + ".faults")
+ .name(name() + ".faults")
.desc("number of faults")
.flags(total | pdf | nozero | nonan)
;
@@ -205,85 +153,79 @@ KSData::regStats(const string &name)
}
_mode
- .init(2)
- .name(name + ".mode_switch")
- .subname(0, "kernel")
- .subname(1, "user")
+ .init(3)
+ .name(name() + ".mode_switch")
.desc("number of protection mode switches")
;
+ for (int i = 0; i < 3; ++i)
+ _mode.subname(i, modestr[i]);
+
_modeGood
- .init(2)
- .name(name + ".mode_good")
+ .init(3)
+ .name(name() + ".mode_good")
;
+ for (int i = 0; i < 3; ++i)
+ _modeGood.subname(i, modestr[i]);
+
_modeFraction
- .name(name + ".mode_switch_good")
- .subname(0, "kernel")
- .subname(1, "user")
+ .name(name() + ".mode_switch_good")
.desc("fraction of useful protection mode switches")
.flags(total)
;
+
+ for (int i = 0; i < 3; ++i)
+ _modeFraction.subname(i, modestr[i]);
+
_modeFraction = _modeGood / _mode;
_modeTicks
- .init(2)
- .name(name + ".mode_ticks")
- .subname(0, "kernel")
- .subname(1, "user")
+ .init(3)
+ .name(name() + ".mode_ticks")
.desc("number of ticks spent at the given mode")
.flags(pdf)
;
+ for (int i = 0; i < 3; ++i)
+ _modeTicks.subname(i, modestr[i]);
_swap_context
- .name(name + ".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++; }
+Statistics::setIdleProcess(Addr idlepcbb)
+{
+ assert(themode == kernel);
+ idleProcess = idlepcbb;
+ themode = idle;
+ changeMode(themode);
+}
void
-KernelStats::hwrei()
-{ data->_hwrei++; }
+Statistics::changeMode(cpu_mode newmode)
+{
+ _mode[newmode]++;
-void
-KernelStats::fault(Fault fault)
-{ data->_faults[fault]++; }
+ if (newmode == themode)
+ return;
-void
-KernelStats::swpipl(int ipl)
-{ data->swpipl(ipl); }
+ DPRINTF(Context, "old mode=%-8s new mode=%-8s\n",
+ modestr[themode], modestr[newmode]);
-void
-KernelStats::mode(bool user)
-{ data->mode(user); }
+ _modeGood[newmode]++;
+ _modeTicks[themode] += curTick - lastModeTick;
-void
-KernelStats::context(Addr old_pcbb, Addr new_pcbb)
-{ data->_swap_context++; }
-
-void
-KernelStats::callpal(int code)
-{ data->callpal(code); }
+ xc->system->kernelBinning->changeMode(newmode);
+ lastModeTick = curTick;
+ themode = newmode;
+}
void
-KSData::swpipl(int ipl)
+Statistics::swpipl(int ipl)
{
assert(ipl >= 0 && ipl <= 0x1f && "invalid IPL\n");
@@ -299,30 +241,28 @@ KSData::swpipl(int ipl)
}
void
-KSData::mode(bool user)
+Statistics::mode(bool usermode)
{
- _mode[user]++;
- if (user == lastUser)
- return;
+ Addr pcbb = xc->regs.ipr[AlphaISA::IPR_PALtemp23];
- _modeGood[user]++;
- _modeTicks[lastUser] += curTick - lastModeTick;
+ cpu_mode newmode = usermode ? user : kernel;
+ if (newmode == kernel && pcbb == idleProcess)
+ newmode = idle;
- 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();
- }
- }
+ changeMode(newmode);
+}
+
+void
+Statistics::context(Addr oldpcbb, Addr newpcbb)
+{
+ assert(themode != user);
+
+ _swap_context++;
+ changeMode(newpcbb == idleProcess ? idle : kernel);
}
void
-KSData::callpal(int code)
+Statistics::callpal(int code)
{
if (!PAL::name(code))
return;
@@ -330,63 +270,34 @@ KSData::callpal(int code)
_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]++;
- }
- }
+ 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;
}
+}
- 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");
- }
- }
- }
+void
+Statistics::serialize(ostream &os)
+{
+ int exemode = themode;
+ SERIALIZE_SCALAR(exemode);
+}
- 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");
- }
+void
+Statistics::unserialize(Checkpoint *cp, const string &section)
+{
+ int exemode;
+ UNSERIALIZE_SCALAR(exemode);
+ themode = (cpu_mode)exemode;
}
+
+/* end namespace Kernel */ }
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