EditDistEpochRecordFilter.hpp

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/*
 * Copyright (c) 2015 - 2024 Intel Corporation
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
#ifndef EDITDISTEPOCHRECORDFILTER_HPP_INCLUDE
#define EDITDISTEPOCHRECORDFILTER_HPP_INCLUDE
 
#include "RecordFilter.hpp"
 
namespace geopm
{
    struct record_s;
    class EditDistPeriodicityDetector;
 
    class EditDistEpochRecordFilter : public RecordFilter
    {
        public:
            EditDistEpochRecordFilter(int history_buffer_size,
                                      int min_hysteresis_base_period,
                                      int min_detectable_period,
                                      double stable_period_hysteresis,
                                      double unstable_period_hysteresis);
            EditDistEpochRecordFilter(std::shared_ptr<EditDistPeriodicityDetector> edpd,
                                      int min_hysteresis_base_period,
                                      int min_detectable_period,
                                      double stable_period_hysteresis,
                                      double unstable_period_hysteresis);
            EditDistEpochRecordFilter(const std::string &name);
            virtual ~EditDistEpochRecordFilter() = default;
            std::vector<record_s> filter(const record_s &record) override;
            static void parse_name(const std::string &name,
                                   int &history_buffer_size,
                                   int &min_hysteresis_base_period,
                                   int &min_detectable_period,
                                   double &stable_period_hysteresis,
                                   double &unstable_period_hysteresis);
        private:
            bool epoch_detected();
 
            std::shared_ptr<EditDistPeriodicityDetector> m_edpd;
            // Parameter for the epoch detection algorithm. See
            // EditDistEpochRecordFilter::epoch_detected().
            const int m_min_hysteresis_base_period;
            // Parameter for the epoch detection algorithm. See
            // EditDistEpochRecordFilter::epoch_detected().
            const int m_min_detectable_period;
            // Parameter for the epoch detection algorithm. See
            // EditDistEpochRecordFilter::epoch_detected().
            const double m_stable_period_hysteresis;
            // Parameter for the epoch detection algorithm. See
            // EditDistEpochRecordFilter::epoch_detected().
            const double m_unstable_period_hysteresis;
            // Input to the stable period detector state machine.
            int m_last_period;
            // Input to the stable period detector state machine.
            int m_period_stable;
            // Input to the stable period detector state machine.
            int m_period_unstable;
            // State variable of the stable period detector state machine.
            bool m_is_period_detected;
            // Input to the stable period detector state machine.
            int m_last_epoch;
            // Variable for the filter method.
            int m_epoch_count;
    };
}
 
#endif