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While it seems interesting functionality, this hasn't been documented, maintained or knowingly leveraged for many years. There are various other approaches today, too: * We track the number of event handler invocations regardless of profiling. It's possible to approximate a load_sample event by comparing the result of two get_event_stats() calls. Or, visualize the corresponding counters in a Prometheus setup to get an idea of event/s broken down by event names. * HookCallFunction() allows to intercept script execution, including measuring the time execution takes. * The global call_stack and g_frame_stack can be used from plugins (and even external processes) to walk the Zeek script stack at certain points to implement a sampling profiler. * USDT probes or more plugin hooks will likely be preferred over Zeek builtin functionality in the future. Relates to #3458
65 lines
1.3 KiB
C++
65 lines
1.3 KiB
C++
// Classes that collect and report statistics.
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#pragma once
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#include "zeek/zeek-config.h"
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#include <cstdint>
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#include <memory>
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namespace zeek {
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class File;
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namespace detail {
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class Location;
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class ProfileLogger final {
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public:
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ProfileLogger(zeek::File* file, double interval);
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~ProfileLogger();
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void Log();
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zeek::File* File() { return file; }
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private:
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zeek::File* file;
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unsigned int log_count;
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};
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extern std::shared_ptr<ProfileLogger> profiling_logger;
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// Connection statistics.
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extern uint64_t killed_by_inactivity;
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// Content gap statistics.
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extern uint64_t tot_ack_events;
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extern uint64_t tot_ack_bytes;
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extern uint64_t tot_gap_events;
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extern uint64_t tot_gap_bytes;
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class PacketProfiler {
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public:
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PacketProfiler(unsigned int mode, double freq, File* arg_file);
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~PacketProfiler();
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static const unsigned int MODE_TIME = 1;
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static const unsigned int MODE_PACKET = 2;
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static const unsigned int MODE_VOLUME = 3;
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void ProfilePkt(double t, unsigned int bytes);
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protected:
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File* file;
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unsigned int update_mode;
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double update_freq;
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double last_Utime, last_Stime, last_Rtime;
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double last_timestamp, time;
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uint64_t last_mem;
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uint64_t pkt_cnt;
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uint64_t byte_cnt;
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};
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} // namespace detail
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} // namespace zeek
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