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38 :
39 : #include "jsperf.h"
40 :
41 : namespace JS {
42 :
43 9 : PerfMeasurement::PerfMeasurement(PerfMeasurement::EventMask)
44 : : impl(0),
45 : eventsMeasured(EventMask(0)),
46 : cpu_cycles(-1),
47 : instructions(-1),
48 : cache_references(-1),
49 : cache_misses(-1),
50 : branch_instructions(-1),
51 : branch_misses(-1),
52 : bus_cycles(-1),
53 : page_faults(-1),
54 : major_page_faults(-1),
55 : context_switches(-1),
56 9 : cpu_migrations(-1)
57 : {
58 9 : }
59 :
60 9 : PerfMeasurement::~PerfMeasurement()
61 : {
62 9 : }
63 :
64 : void
65 0 : PerfMeasurement::start()
66 : {
67 0 : }
68 :
69 : void
70 0 : PerfMeasurement::stop()
71 : {
72 0 : }
73 :
74 : void
75 0 : PerfMeasurement::reset()
76 : {
77 0 : cpu_cycles = -1;
78 0 : instructions = -1;
79 0 : cache_references = -1;
80 0 : cache_misses = -1;
81 0 : branch_instructions = -1;
82 0 : branch_misses = -1;
83 0 : bus_cycles = -1;
84 0 : page_faults = -1;
85 0 : major_page_faults = -1;
86 0 : context_switches = -1;
87 0 : cpu_migrations = -1;
88 0 : }
89 :
90 : bool
91 0 : PerfMeasurement::canMeasureSomething()
92 : {
93 0 : return false;
94 : }
95 :
96 : } // namespace JS
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