1½ Topics: realtime throttling and user-space adaptive spinning

Posted May 15, 2023 2:48 UTC (Mon) by nevets (subscriber, #11875)
In reply to: 1½ Topics: realtime throttling and user-space adaptive spinning by xecycle
Parent article: 1½ Topics: realtime throttling and user-space adaptive spinning

If this is implemented, then that use case is possible. But I'm not sure of what would use that use case.

1½ Topics: realtime throttling and user-space adaptive spinning

Posted May 15, 2023 15:38 UTC (Mon) by atnot (subscriber, #124910) [Link]

The main place I've seen things of this sort is garbage collection. If you have some shared data structure that allocates, *someone* needs to do the cleanup and usually you'd really prefer if that wasn't you or a thread you're waiting on. This leads to all kinds of complex heuristics and hints. If you can just pass the broom on to whoever wants to touch the data next, that has the potential to decrease tail latencies a lot.