On 12/19/18 12:36 AM, Jesper Dangaard Brouer wrote: > Today, the existing network tracepoints using dev->name is not that > usable by BPF, as BPF cannot identify the interface. Thus IMHO it would > make sense to convert the existing network tracepoints dev->name into > dev->ifindex, and then let perf-script convert this to the interface > name. Either in userspace via if_indextoname(3), or (as ACME pointed > out at the time) we might want to have a lookup table stored together > with perf.data for later inspection (in-case ifindexes changed). >
You need network namespace references as well and the ability to monitor device notifications.
