26 #include "../Framework.h"
35 template <
bool output_timestamps>
40 return "Wall clock timestamps";
48 template <
bool output_timestamps>
51 #if defined(BARE_METAL)
56 "mrs %[tmp], pmcr_el0\n"
57 "orr %[tmp], %[tmp], #1\n"
58 "msr pmcr_el0, %[tmp]\n"
59 "mrs %[tmp], pmcntenset_el0\n"
60 "orr %[tmp], %[tmp], #1<<31\n"
61 "msr pmcntenset_el0, %[tmp]\n"
62 "mrs %[retval], pmccntr_el0\n"
66 #else // !defined(BARE_METAL)
67 _start = std::chrono::system_clock::now();
68 #endif // defined(BARE_METAL)
71 template <
bool output_timestamps>
74 #if defined(BARE_METAL)
79 "mrs %[retval], pmccntr_el0\n"
81 "orr %[tmp], %[tmp], #1<<31\n"
82 "msr pmcntenclr_el0, %[tmp]\n"
86 #else // !defined(BARE_METAL)
87 _stop = std::chrono::system_clock::now();
88 #endif // defined(BARE_METAL)
91 template <
bool output_timestamps>
97 #if defined(BARE_METAL)
98 measurements.emplace(
"[start]Wall clock time",
Measurement(_start /
static_cast<uint64_t
>(_scale_factor), _unit));
99 measurements.emplace(
"[end]Wall clock time",
Measurement(_stop /
static_cast<uint64_t
>(_scale_factor), _unit));
100 #else // !defined(BARE_METAL)
101 measurements.emplace(
"[start]Wall clock time",
Measurement(_start.time_since_epoch().count() /
static_cast<uint64_t
>(1000 * _scale_factor), _unit));
102 measurements.emplace(
"[end]Wall clock time",
Measurement(_stop.time_since_epoch().count() /
static_cast<uint64_t
>(1000 * _scale_factor), _unit));
103 #endif // defined(BARE_METAL)
107 #if defined(BARE_METAL)
108 const double delta = _stop - _start;
109 measurements.emplace(
"Wall clock time",
Measurement(delta /
static_cast<double>(1000 * _scale_factor), _unit));
110 #else // !defined(BARE_METAL)
111 const auto delta = std::chrono::duration_cast<std::chrono::microseconds>(_stop - _start);
112 measurements.emplace(
"Wall clock time",
Measurement(delta.count() / _scale_factor, _unit));
113 #endif // defined(BARE_METAL)