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authorOndrej Zajicek (work) <santiago@crfreenet.org>2021-03-12 15:35:56 +0100
committerOndrej Zajicek (work) <santiago@crfreenet.org>2021-03-12 15:35:56 +0100
commit7be3af7fa662958782d2e23989d79cc2c652b6bf (patch)
treeaeecb3e36af55eb4367f0b5218e3301d6383808e /lib/slists.c
parent9cf3d533110313d55b60d47c134f1b7050d6be78 (diff)
Rate-limit scheduling of work-events
In general, events are code handling some some condition, which is scheduled when such condition happened and executed independently from I/O loop. Work-events are a subgroup of events that are scheduled repeatedly until some (often significant) work is done (e.g. feeding routes to protocol). All scheduled events are executed during each I/O loop iteration. Separate work-events from regular events to a separate queue and rate limit their execution to a fixed number per I/O loop iteration. That should prevent excess latency when many work-events are scheduled at one time (e.g. simultaneous reload of many BGP sessions).
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