mirror of
https://git.rwth-aachen.de/acs/public/villas/node/
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108 lines
2.6 KiB
C++
108 lines
2.6 KiB
C++
/* Statistic collection.
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*
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* Author: Steffen Vogel <post@steffenvogel.de>
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* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
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* SPDX-License-Identifier: Apache-2.0
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*/
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#pragma once
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#include <cstdint>
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#include <jansson.h>
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#include <memory>
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#include <string>
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#include <unordered_map>
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#include <villas/common.hpp>
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#include <villas/hist.hpp>
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#include <villas/log.hpp>
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#include <villas/signal.hpp>
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#include <villas/table.hpp>
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namespace villas {
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namespace node {
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// Forward declarations
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struct Sample;
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class Node;
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} // namespace node
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class Stats {
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public:
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using Ptr = std::shared_ptr<Stats>;
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enum class Format { HUMAN, JSON, MATLAB };
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enum class Metric {
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SMPS_SKIPPED, // Counter for skipped samples due to hooks.
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SMPS_REORDERED, // Counter for reordered samples.
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// Timings
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GAP_SAMPLE, // Histogram for inter sample timestamps (as sent by remote).
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GAP_RECEIVED, // Histogram for inter sample arrival time (as seen by this instance).
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OWD, // Histogram for one-way-delay (OWD) of received samples.
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AGE, // Processing time of packets within VILLASnode.
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SIGNAL_COUNT, // Number of signals per sample.
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// RTP metrics
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RTP_LOSS_FRACTION, // Fraction lost since last RTP SR/RR.
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RTP_PKTS_LOST, // Cumul. no. pkts lost.
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RTP_JITTER // Interarrival jitter.
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};
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enum class Type { LAST, HIGHEST, LOWEST, MEAN, VAR, STDDEV, TOTAL };
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protected:
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std::unordered_map<Metric, villas::Hist> histograms;
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struct MetricDescription {
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const char *name;
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const char *unit;
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const char *desc;
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};
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struct TypeDescription {
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const char *name;
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enum node::SignalType signal_type;
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};
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static std::shared_ptr<Table> table;
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static void setupTable();
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Logger logger;
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public:
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Stats(int buckets, int warmup);
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static enum Format lookupFormat(const std::string &str);
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static enum Metric lookupMetric(const std::string &str);
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static enum Type lookupType(const std::string &str);
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void update(enum Metric id, double val);
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void reset();
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json_t *toJson() const;
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static void printHeader(enum Format fmt);
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void printPeriodic(FILE *f, enum Format fmt, node::Node *n) const;
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void print(FILE *f, enum Format fmt, int verbose) const;
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union node::SignalData getValue(enum Metric sm, enum Type st) const;
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const Hist &getHistogram(enum Metric sm) const;
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static std::unordered_map<Metric, MetricDescription> metrics;
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static std::unordered_map<Type, TypeDescription> types;
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static std::vector<TableColumn> columns;
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};
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} // namespace villas
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