V8 API Reference, 7.2.502.16 (for Deno 0.2.4)
compilation-statistics.h
1 // Copyright 2014 the V8 project authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef V8_COMPILATION_STATISTICS_H_
6 #define V8_COMPILATION_STATISTICS_H_
7 
8 #include <map>
9 #include <string>
10 
11 #include "src/allocation.h"
12 #include "src/base/platform/time.h"
13 
14 namespace v8 {
15 namespace internal {
16 
17 class OptimizedCompilationInfo;
18 class CompilationStatistics;
19 
21  const CompilationStatistics& s;
22  const bool machine_output;
23 };
24 
25 class CompilationStatistics final : public Malloced {
26  public:
27  CompilationStatistics() = default;
28 
29  class BasicStats {
30  public:
31  BasicStats()
32  : total_allocated_bytes_(0),
33  max_allocated_bytes_(0),
34  absolute_max_allocated_bytes_(0) {}
35 
36  void Accumulate(const BasicStats& stats);
37 
38  base::TimeDelta delta_;
39  size_t total_allocated_bytes_;
40  size_t max_allocated_bytes_;
41  size_t absolute_max_allocated_bytes_;
42  std::string function_name_;
43  };
44 
45  void RecordPhaseStats(const char* phase_kind_name, const char* phase_name,
46  const BasicStats& stats);
47 
48  void RecordPhaseKindStats(const char* phase_kind_name,
49  const BasicStats& stats);
50 
51  void RecordTotalStats(size_t source_size, const BasicStats& stats);
52 
53  private:
54  class TotalStats : public BasicStats {
55  public:
56  TotalStats() : source_size_(0) {}
57  uint64_t source_size_;
58  };
59 
60  class OrderedStats : public BasicStats {
61  public:
62  explicit OrderedStats(size_t insert_order) : insert_order_(insert_order) {}
63  size_t insert_order_;
64  };
65 
66  class PhaseStats : public OrderedStats {
67  public:
68  PhaseStats(size_t insert_order, const char* phase_kind_name)
69  : OrderedStats(insert_order), phase_kind_name_(phase_kind_name) {}
70  std::string phase_kind_name_;
71  };
72 
73  friend std::ostream& operator<<(std::ostream& os,
74  const AsPrintableStatistics& s);
75 
76  typedef OrderedStats PhaseKindStats;
77  typedef std::map<std::string, PhaseKindStats> PhaseKindMap;
78  typedef std::map<std::string, PhaseStats> PhaseMap;
79 
80  TotalStats total_stats_;
81  PhaseKindMap phase_kind_map_;
82  PhaseMap phase_map_;
83  base::Mutex record_mutex_;
84 
85  DISALLOW_COPY_AND_ASSIGN(CompilationStatistics);
86 };
87 
88 std::ostream& operator<<(std::ostream& os, const AsPrintableStatistics& s);
89 
90 } // namespace internal
91 } // namespace v8
92 
93 #endif // V8_COMPILATION_STATISTICS_H_
Definition: libplatform.h:13