I did some tests.
The performance did not change.
I think this is the expected behaviour.
BR
Simon
2017-01-23 7:35 GMT+01:00, David Gwynne :
> hrvoje popovski hit a problem where the kernel would panic under load.
>
> i mistakenly called an interfaces qstart routine directly from
> if_enqueue ra
hrvoje popovski hit a problem where the kernel would panic under load.
i mistakenly called an interfaces qstart routine directly from
if_enqueue rather than via the ifq serializer. this meant that txeof
routines on network cards calling ifq_restart would cause the start
routine to run concurrently
the short explanation is that this lets interfaces allocate multiple
ifq structures that can be mapped to their transmit rings. the
mechanism for this is a driver calling if_attach_queues() after
theyve called if_attach().
the long version is that this has if_enqueue access an array of
ifqueues on
