On Wed, Dec 09, 2009 at 07:46:26PM +0100, Kay Sievers wrote: > Can't, in some setups, these events happen at a rather high frequency? > I heard of people running many hundreds of ppp interfaces on a single > box acting as a DSL concentrator. /me waves Yes, DSL concentration is looking at tens of thousands to a hundred thousand interfaces on current hardware with 10G links. > They state to already have trouble > handling the amount of uevents generated on such boxes just for the > "add/remove" events of all the interfaces if something goes wrong with > the network. If we add more for state transitions, such events would > probably need to be rate-limited. In general, uevents/udev are not > really suitable for high-frequency events, and if such behavior can be > expected, we might better stick with the current netlink interface. Duplicating events in different delivery mechanisms seems pointless. A simple netlink listener can be done in less than a hundred lines, so I don't see the need for the duplication. -ben -- To unsubscribe from this list: send the line "unsubscribe linux-hotplug" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html