blob: 29fc767d63188a622336a53c5130a9391a50cca8 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
|
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//-----------------------------------------------------------------------------
// PerfCounters.h
//
// Internal Interface for CLR to use Performance counters
//-----------------------------------------------------------------------------
#ifndef _PerfCounters_h_
#define _PerfCounters_h_
#include "perfcounterdefs.h"
#ifdef ENABLE_PERF_COUNTERS
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// This code section active iff we're using Perf Counters
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// PerfCounter class serves as namespace with data protection.
// Enforce this by making constructor private
//-----------------------------------------------------------------------------
class PerfCounters
{
private:
PerfCounters();
public:
static HRESULT Init();
static void Terminate();
static PerfCounterIPCControlBlock * GetPrivatePerfCounterPtr();
private:
static HANDLE m_hPrivateMapPerf;
static PerfCounterIPCControlBlock * m_pPrivatePerf;
static BOOL m_fInit;
// Set pointers to garbage so they're never null.
static PerfCounterIPCControlBlock m_garbage;
friend PerfCounterIPCControlBlock & GetPerfCounters();
};
//-----------------------------------------------------------------------------
// Utility functions
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// Get the perf counters specific to our process
//-----------------------------------------------------------------------------
inline PerfCounterIPCControlBlock & GetPerfCounters()
{
LIMITED_METHOD_CONTRACT;
return *PerfCounters::m_pPrivatePerf;
}
inline PerfCounterIPCControlBlock *PerfCounters::GetPrivatePerfCounterPtr()
{
LIMITED_METHOD_CONTRACT;
return m_pPrivatePerf;
};
#define COUNTER_ONLY(x) x
#define PERF_COUNTER_NUM_OF_ITERATIONS 10
#if defined(_X86_) && defined(_MSC_VER)
inline UINT64 GetCycleCount_UINT64()
{
LIMITED_METHOD_CONTRACT;
return __rdtsc();
}
#else // defined(_X86_) && defined(_MSC_VER)
inline UINT64 GetCycleCount_UINT64()
{
LIMITED_METHOD_CONTRACT;
LARGE_INTEGER qwTmp;
QueryPerformanceCounter(&qwTmp);
return qwTmp.QuadPart;
}
#endif // defined(_X86_) && defined(_MSC_VER)
#define PERF_COUNTER_TIMER_PRECISION UINT64
#define GET_CYCLE_COUNT GetCycleCount_UINT64
#define PERF_COUNTER_TIMER_START() \
PERF_COUNTER_TIMER_PRECISION _startPerfCounterTimer = GET_CYCLE_COUNT();
#define PERF_COUNTER_TIMER_STOP(global) \
global = (GET_CYCLE_COUNT() - _startPerfCounterTimer);
#else // ENABLE_PERF_COUNTERS
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
// This code section active iff we're NOT using Perf Counters
// Note, not even a class definition, so all usages of PerfCounters in client
// should be in #ifdef or COUNTER_ONLY().
//-----------------------------------------------------------------------------
//-----------------------------------------------------------------------------
#define COUNTER_ONLY(x)
#endif // ENABLE_PERF_COUNTERS
#endif // _PerfCounters_h_
|
