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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 |
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