src/kern/kernel_stats.hh

   1 /*
   2  * Copyright (c) 2004-2005 The Regents of The University of Michigan
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met: redistributions of source code must retain the above copyright
   8  * notice, this list of conditions and the following disclaimer;
   9  * redistributions in binary form must reproduce the above copyright
  10  * notice, this list of conditions and the following disclaimer in the
  11  * documentation and/or other materials provided with the distribution;
  12  * neither the name of the copyright holders nor the names of its
  13  * contributors may be used to endorse or promote products derived from
  14  * this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  17  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  18  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  19  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  20  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  21  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  22  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  26  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  27  */
  28
  29 #ifndef __KERNEL_STATS_HH__
  30 #define __KERNEL_STATS_HH__
  31
  32 #include <map>
  33 #include <stack>
  34 #include <string>
  35 #include <vector>
  36
  37 #include "cpu/static_inst.hh"
  38
  39 class BaseCPU;
  40 class ExecContext;
  41 class FnEvent;
  42 // What does kernel stats expect is included?
  43 class System;
  44
  45 namespace Kernel {
  46
  47 enum cpu_mode { kernel, user, idle, interrupt, cpu_mode_num };
  48 extern const char *modestr[];
  49
  50 class Binning
  51 {
  52   private:
  53     std::string myname;
  54     System *system;
  55
  56   private:
  57     // lisa's binning stuff
  58     struct fnCall
  59     {
  60         Stats::MainBin *myBin;
  61         std::string name;
  62     };
  63
  64     struct SWContext
  65     {
  66         Counter calls;
  67         std::stack<fnCall *> callStack;
  68     };
  69
  70     std::map<const std::string, Stats::MainBin *> fnBins;
  71     std::map<const Addr, SWContext *> swCtxMap;
  72
  73     std::multimap<const std::string, std::string> callerMap;
  74     void populateMap(std::string caller, std::string callee);
  75
  76     std::vector<FnEvent *> fnEvents;
  77
  78     Stats::Scalar<> fnCalls;
  79
  80     Stats::MainBin *getBin(const std::string &name);
  81     bool findCaller(std::string, std::string) const;
  82
  83     SWContext *findContext(Addr pcb);
  84     bool addContext(Addr pcb, SWContext *ctx)
  85     {
  86         return (swCtxMap.insert(std::make_pair(pcb, ctx))).second;
  87     }
  88
  89     void remContext(Addr pcb)
  90     {
  91         swCtxMap.erase(pcb);
  92     }
  93
  94     void dumpState() const;
  95
  96     SWContext *swctx;
  97     std::vector<std::string> binned_fns;
  98
  99   private:
 100     Stats::MainBin *modeBin[cpu_mode_num];
 101
 102   public:
 103     const bool bin;
 104     const bool fnbin;
 105
 106     cpu_mode themode;
 107     void palSwapContext(ExecContext *xc);
 108     void execute(ExecContext *xc, StaticInstPtr inst);
 109     void call(ExecContext *xc, Stats::MainBin *myBin);
 110     void changeMode(cpu_mode mode);
 111
 112   public:
 113     Binning(System *sys);
 114     virtual ~Binning();
 115
 116     const std::string name() const { return myname; }
 117     void regStats(const std::string &name);
 118
 119   public:
 120     virtual void serialize(std::ostream &os);
 121     virtual void unserialize(Checkpoint *cp, const std::string &section);
 122 };
 123
 124 class Statistics : public Serializable
 125 {
 126   private:
 127     friend class Binning;
 128
 129   private:
 130     std::string myname;
 131
 132     Addr idleProcess;
 133     cpu_mode themode;
 134     Tick lastModeTick;
 135     bool bin_int;
 136
 137     void changeMode(cpu_mode newmode, ExecContext *xc);
 138
 139   private:
 140     Stats::Scalar<> _arm;
 141     Stats::Scalar<> _quiesce;
 142     Stats::Scalar<> _ivlb;
 143     Stats::Scalar<> _ivle;
 144     Stats::Scalar<> _hwrei;
 145
 146     Stats::Vector<> _iplCount;
 147     Stats::Vector<> _iplGood;
 148     Stats::Vector<> _iplTicks;
 149     Stats::Formula _iplUsed;
 150
 151     Stats::Vector<> _callpal;
 152     Stats::Vector<> _syscall;
 153 //    Stats::Vector<> _faults;
 154
 155     Stats::Vector<> _mode;
 156     Stats::Vector<> _modeGood;
 157     Stats::Formula _modeFraction;
 158     Stats::Vector<> _modeTicks;
 159
 160     Stats::Scalar<> _swap_context;
 161
 162   private:
 163     int iplLast;
 164     Tick iplLastTick;
 165
 166   public:
 167     Statistics(System *system);
 168
 169     const std::string name() const { return myname; }
 170     void regStats(const std::string &name);
 171
 172   public:
 173     void arm() { _arm++; }
 174     void quiesce() { _quiesce++; }
 175     void ivlb() { _ivlb++; }
 176     void ivle() { _ivle++; }
 177     void hwrei() { _hwrei++; }
 178     void swpipl(int ipl);
 179     void mode(cpu_mode newmode, ExecContext *xc);
 180     void context(Addr oldpcbb, Addr newpcbb, ExecContext *xc);
 181     void callpal(int code, ExecContext *xc);
 182
 183     void setIdleProcess(Addr idle, ExecContext *xc);
 184
 185   public:
 186     virtual void serialize(std::ostream &os);
 187     virtual void unserialize(Checkpoint *cp, const std::string &section);
 188 };
 189
 190 /* end namespace Kernel */ }
 191
 192 #endif // __KERNEL_STATS_HH__