Histogram¶

template<uint64_t N0, uint64_t N1, uint64_t N2, uint64_t N3, uint64_t N4, uint64_t N5> struct Histogram : public roq::utils::metrics::detail::Base¶

Public Types

using value_type = uint64_t¶

Public Functions

inline value_type threshold() const¶

inline void prefetch() noexcept¶: Prefetch data into L1 cache.

inline bool update(value_type value) noexcept¶: Update histogram with specific value.

inline roq::metrics::Writer &write(roq::metrics::Writer &writer, std::string_view const &name) const¶

inline roq::metrics::Writer &write(roq::metrics::Writer &writer, std::string_view const &name, std::string_view const &labels) const¶

Base() = default¶

explicit Base(std::string_view const &labels)¶

Base(std::string_view const &label_name_0, std::string_view const &label_value_0)¶

Base(std::string_view const &label_name_0, std::string_view const &label_value_0, std::string_view const &label_name_1, std::string_view const &label_value_1)¶

Base(std::string_view const &label_name_0, std::string_view const &label_value_0, std::string_view const &label_name_1, std::string_view const &label_value_1, std::string_view const &label_name_2, std::string_view const &label_value_2)¶

Base(std::string_view const &label_name_0, std::string_view const &label_value_0, std::string_view const &label_name_1, std::string_view const &label_value_1, std::string_view const &label_name_2, std::string_view const &label_value_2, std::string_view const &label_name_3, std::string_view const &label_value_3)¶

Base(Base const&) = delete¶

Base(Base&&) = delete¶

Public Members

value_type const threshold_0 = N0 ¶

value_type const threshold_1 = N1 ¶

value_type const threshold_2 = N2 ¶

value_type const threshold_3 = N3 ¶

value_type const threshold_4 = N4 ¶

value_type const threshold_5 = N5 ¶