kernel_stats.hh revision 1762 
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 "base/statistics.hh"
38#include "sim/serialize.hh"
39#include "targetarch/isa_traits.hh"
40
41class BaseCPU;
42class ExecContext;
43class FnEvent;
44// What does kernel stats expect is included?
45class StaticInstBase;
46class System;
47enum Fault;
48
49namespace Kernel {
50
51enum cpu_mode { kernel, user, idle, interrupt, cpu_mode_num };
52extern const char *modestr[];
53
54class Binning
55{
56  private:
57    std::string myname;
58    System *system;
59
60  private:
61    // lisa's binning stuff
62    struct fnCall
63    {
64        Stats::MainBin *myBin;
65        std::string name;
66    };
67
68    struct SWContext
69    {
70        Counter calls;
71        std::stack<fnCall *> callStack;
72    };
73
74    std::map<const std::string, Stats::MainBin *> fnBins;
75    std::map<const Addr, SWContext *> swCtxMap;
76
77    std::multimap<const std::string, std::string> callerMap;
78    void populateMap(std::string caller, std::string callee);
79
80    std::vector<FnEvent *> fnEvents;
81
82    Stats::Scalar<> fnCalls;
83
84    Stats::MainBin *getBin(const std::string &name);
85    bool findCaller(std::string, std::string) const;
86
87    SWContext *findContext(Addr pcb);
88    bool addContext(Addr pcb, SWContext *ctx)
89    {
90        return (swCtxMap.insert(std::make_pair(pcb, ctx))).second;
91    }
92
93    void remContext(Addr pcb)
94    {
95        swCtxMap.erase(pcb);
96    }
97
98    void dumpState() const;
99
100    SWContext *swctx;
101    std::vector<std::string> binned_fns;
102
103  private:
104    Stats::MainBin *modeBin[cpu_mode_num];
105
106  public:
107    const bool bin;
108    const bool fnbin;
109
110    cpu_mode themode;
111    void palSwapContext(ExecContext *xc);
112    void execute(ExecContext *xc, const StaticInstBase *inst);
113    void call(ExecContext *xc, Stats::MainBin *myBin);
114    void changeMode(cpu_mode mode);
115
116  public:
117    Binning(System *sys);
118    virtual ~Binning();
119
120    const std::string name() const { return myname; }
121    void regStats(const std::string &name);
122
123  public:
124    virtual void serialize(std::ostream &os);
125    virtual void unserialize(Checkpoint *cp, const std::string &section);
126};
127
128class Statistics : public Serializable
129{
130    friend class Binning;
131
132  private:
133    std::string myname;
134    ExecContext *xc;
135
136    Addr idleProcess;
137    cpu_mode themode;
138    Tick lastModeTick;
139    bool bin_int;
140
141    void changeMode(cpu_mode newmode);
142
143  private:
144    Stats::Scalar<> _arm;
145    Stats::Scalar<> _quiesce;
146    Stats::Scalar<> _ivlb;
147    Stats::Scalar<> _ivle;
148    Stats::Scalar<> _hwrei;
149
150    Stats::Vector<> _iplCount;
151    Stats::Vector<> _iplGood;
152    Stats::Vector<> _iplTicks;
153    Stats::Formula _iplUsed;
154
155    Stats::Vector<> _callpal;
156    Stats::Vector<> _syscall;
157    Stats::Vector<> _faults;
158
159    Stats::Vector<> _mode;
160    Stats::Vector<> _modeGood;
161    Stats::Formula _modeFraction;
162    Stats::Vector<> _modeTicks;
163
164    Stats::Scalar<> _swap_context;
165
166  private:
167    int iplLast;
168    Tick iplLastTick;
169
170  public:
171    Statistics(ExecContext *context);
172
173    const std::string name() const { return myname; }
174    void regStats(const std::string &name);
175
176  public:
177    void arm() { _arm++; }
178    void quiesce() { _quiesce++; }
179    void ivlb() { _ivlb++; }
180    void ivle() { _ivle++; }
181    void hwrei() { _hwrei++; }
182    void fault(Fault fault) { _faults[fault]++; }
183    void swpipl(int ipl);
184    void mode(cpu_mode newmode);
185    void context(Addr oldpcbb, Addr newpcbb);
186    void callpal(int code);
187
188    void setIdleProcess(Addr idle);
189
190  public:
191    virtual void serialize(std::ostream &os);
192    virtual void unserialize(Checkpoint *cp, const std::string &section);
193};
194
195/* end namespace Kernel */ }
196
197#endif // __KERNEL_STATS_HH__
198