On Mon, Jun 6, 2016 at 4:53 PM, Eric Dumazet <eric.duma...@gmail.com> wrote: > Really sounds overkill to care about these, as probably no one needs to > get a 'consistent view of all these counters in a snapshot'. > > Even as of today, the qlen/backlog pair is wrong. No one ever used these > values in an SNMP agent. > > Note that qlen/backlog is changed both by enqueue/dequeue, so the > seqcount protection would not work.
I see. > > With the percpu stats thing, stats can not be fetched in a 'consistent' > way. Fair enough. Thanks!