| 80 | //! |
| 81 | template <typename T> |
| 82 | float findCoeffOfVariance(std::vector<InferenceTime> const& timings, T const& toFloat, float mean) |
| 83 | { |
| 84 | if (timings.empty()) |
| 85 | { |
| 86 | return 0; |
| 87 | } |
| 88 | |
| 89 | if (mean == 0.F) |
| 90 | { |
| 91 | return std::numeric_limits<float>::infinity(); |
| 92 | } |
| 93 | |
| 94 | auto const metricAccumulator = [toFloat, mean](float acc, InferenceTime const& a) { |
| 95 | float const diff = toFloat(a) - mean; |
| 96 | return acc + diff * diff; |
| 97 | }; |
| 98 | float const variance = std::accumulate(timings.begin(), timings.end(), 0.F, metricAccumulator) / timings.size(); |
| 99 | |
| 100 | return std::sqrt(variance) / mean * 100.F; |
| 101 | } |
| 102 | |
| 103 | inline InferenceTime traceToTiming(const InferenceTrace& a) |
| 104 | { |
no test coverage detected