HF RL Explorer

Feature Request: Event Loop Prepare/Check Watchers for Performance Monitoring

Feature Request: Event Loop Prepare/Check Watchers for Performance Monitoring: a task in LegoFlow-SWE (Harbor dataset). Users of libevent (e.g., Envoy) need to collect histograms of the duration of I/O polling and the wakeup delay of the event loop. Currently, the EVLOOP ONCE flag does not provide…

The task

Users of libevent (e.g., Envoy) need to collect histograms of the **duration** of I/O polling and the wakeup delay of the event loop. Currently, the `EVLOOP_ONCE` flag does not provide sufficient hooks to measure these quantities. We need a way to insert callbacks that reliably fire *immediately before* the event…

Part of Lego-X/LegoFlow-SWE.