1
2/*
3 * Copyright (c) 1999-2008 Mark D. Hill and David A. Wood
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are
8 * met: redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer;

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22 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
23 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
28 */
29
30/*
31 * $Id$
32 *
33 * Description:
34 *
35 */
36
37#ifndef StoreTrace_H
38#define StoreTrace_H
39
40#include "mem/ruby/common/Global.hh"
41#include "mem/ruby/common/Address.hh"
42#include "mem/ruby/common/Histogram.hh"
43
44class StoreTrace {
45public:
46 // Constructors
47 StoreTrace() { }
48 explicit StoreTrace(const Address& addr);
49
50 // Destructor
51 ~StoreTrace();
52
53 // Public Methods
54 void store(NodeID node);
55 void downgrade(NodeID node);
56 int getTotal() const { return m_total_samples; }
57 static void initSummary();
58 static void printSummary(ostream& out);
59 static void clearSummary();
60
61 void print(ostream& out) const;
62private:
63 // Private Methods
64
65 // Private copy constructor and assignment operator
66 // StoreTrace(const StoreTrace& obj);
67 // StoreTrace& operator=(const StoreTrace& obj);
68
69 // Class Members (s_ prefix)
70 static bool s_init;
71 static int64 s_total_samples; // Total number of store lifetimes of all lines
72 static Histogram* s_store_count_ptr;
73 static Histogram* s_store_first_to_stolen_ptr;
74 static Histogram* s_store_last_to_stolen_ptr;
75 static Histogram* s_store_first_to_last_ptr;
76
77 // Data Members (m_ prefix)
78
79 Address m_addr;
80 NodeID m_last_writer;
81 Time m_first_store;
82 Time m_last_store;
83 int m_stores_this_interval;
84
85 int64 m_total_samples; // Total number of store lifetimes of this line
86 Histogram m_store_count;
87 Histogram m_store_first_to_stolen;
88 Histogram m_store_last_to_stolen;
89 Histogram m_store_first_to_last;
90};
91
92bool node_less_then_eq(const StoreTrace* n1, const StoreTrace* n2);
93
94// Output operator declaration
95ostream& operator<<(ostream& out, const StoreTrace& obj);
96
97// ******************* Definitions *******************
98
99// Output operator definition
100extern inline
101ostream& operator<<(ostream& out, const StoreTrace& obj)
102{
103 obj.print(out);
104 out << flush;
105 return out;
106}
107
108#endif //StoreTrace_H