On Sunday, September 25, 2011 5:48:31 am Adrian Chadd wrote: > Nope, it has the opposite effect: > > * Increased latency may make aggregation better (for TX) but it limits > throughput because TCP senses a latency increase;
I suspect this matters more. Have you tried comparing UDP throughput in the two cases? One behavioral difference of a periodic timer vs a deadline timer is that if you ask to delay for "1 clock tick", that can be anywhere from 0us to 1000us (with hz == 1000) when using the periodic timer (because you can set the callout at any time within a tick, but the callout will fire at the start of the next tick). However, for a deadline timer, the TCP timer will always fire 1000us after you set the timer. -- John Baldwin _______________________________________________ freebsd-current@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-current To unsubscribe, send any mail to "freebsd-current-unsubscr...@freebsd.org"
