On Tue, 1 Aug 2017, Naveen N. Rao wrote: > Add a new option 'signal_on_wakeup' to request for a signal to be > delivered on ring buffer wakeup controlled through watermark and > {wakeup_events, wakeup_watermark}. HUP is signaled on exit. > > Setting signal_on_wakeup disables use of IOC_REFRESH to control signal > delivery, instead relying on IOC_ENABLE/DISABLE.
so I probably missed the original thread on this new interface, but why is IOC_REFRESH not being used? For new interfaces like this it's also nice to have some text that can be added to the perf_event_open() manpage, especially if there's weird conditions like this. Vince