Michael> By testing again, and waking the net queue if completions
Michael> arrived, we can avoid taking the tx lock on send
Michael> completion in ip over ib, reducing the lock contention.
I really like the clever way of retesting after putting the queue to
sleep. However I can't convince myself that some test or other will
be wrong because of stale values of tx_head or tx_tail, and I'm always
scared of code that requires multiple barriers and so on. So I'm
going to defer applying this until I have time to think hard and make
sure there aren't any subtle races.
- R.
_______________________________________________
openib-general mailing list
[email protected]
http://openib.org/mailman/listinfo/openib-general
To unsubscribe, please visit http://openib.org/mailman/listinfo/openib-general
