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  * Authors: Lisa Hsu
  29  *          Nathan Binkert
  30  */
  31
  32 #ifndef __KERNEL_STATS_HH__
  33 #define __KERNEL_STATS_HH__
  34
  35 #include <map>
  36 #include <stack>
  37 #include <string>
  38 #include <vector>
  39
  40 #include "cpu/static_inst.hh"
  41
  42 class BaseCPU;
  43 class ThreadContext;
  44 class FnEvent;
  45 // What does kernel stats expect is included?
  46 class System;
  47
  48 namespace Kernel {
  49
  50 enum cpu_mode { kernel, user, idle, cpu_mode_num };
  51 extern const char *modestr[];
  52
  53 class Statistics : public Serializable
  54 {
  55   private:
  56     std::string myname;
  57
  58     Addr idleProcess;
  59     cpu_mode themode;
  60     Tick lastModeTick;
  61
  62     void changeMode(cpu_mode newmode, ThreadContext *tc);
  63
  64   private:
  65     Stats::Scalar<> _arm;
  66     Stats::Scalar<> _quiesce;
  67     Stats::Scalar<> _hwrei;
  68
  69     Stats::Vector<> _iplCount;
  70     Stats::Vector<> _iplGood;
  71     Stats::Vector<> _iplTicks;
  72     Stats::Formula _iplUsed;
  73
  74     Stats::Vector<> _callpal;
  75     Stats::Vector<> _syscall;
  76 //    Stats::Vector<> _faults;
  77
  78     Stats::Vector<> _mode;
  79     Stats::Vector<> _modeGood;
  80     Stats::Formula _modeFraction;
  81     Stats::Vector<> _modeTicks;
  82
  83     Stats::Scalar<> _swap_context;
  84
  85   private:
  86     int iplLast;
  87     Tick iplLastTick;
  88
  89   public:
  90     Statistics(System *system);
  91
  92     const std::string name() const { return myname; }
  93     void regStats(const std::string &name);
  94
  95   public:
  96     void arm() { _arm++; }
  97     void quiesce() { _quiesce++; }
  98     void hwrei() { _hwrei++; }
  99     void swpipl(int ipl);
 100     void mode(cpu_mode newmode, ThreadContext *tc);
 101     void context(Addr oldpcbb, Addr newpcbb, ThreadContext *tc);
 102     void callpal(int code, ThreadContext *tc);
 103
 104     void setIdleProcess(Addr idle, ThreadContext *tc);
 105
 106   public:
 107     virtual void serialize(std::ostream &os);
 108     virtual void unserialize(Checkpoint *cp, const std::string &section);
 109 };
 110
 111 /* end namespace Kernel */ }
 112
 113 #endif // __KERNEL_STATS_HH__