It's in the NIC. But it seems that it sometimes aggregates more than the set BA win size (in the driver). In fact i was wondering - if it can actually achieve up to 80 Mbps throughput with just 8 frames aggregated. In fact the aggregation size doesn't seem to matter much for the throughput because any aggregation from 5-8 seems to get the same throughput. So, i was wondering if this is something weird in NIC or can we do some thing to control it in the driver ?
ram On Thu, Oct 10, 2013 at 4:41 PM, Adrian Chadd <adr...@freebsd.org> wrote: > I forget .. is the driver or the NIC itself doing aggregation? > > > -a > > > On 10 October 2013 10:33, Ramanujan Seshadri <ksramanu...@gmail.com>wrote: > >> Hello all, >> i was testing some features of ralink rt2860 driver. i saw a bit weird >> results. below is the result of what i saw. The throughput achieved >> doesn't >> change much when the MPDU aggregation in an AMPDU goes from 3 to 8. And >> also, the driver doesn't seem to aggregate more than 8 MPDU's in an AMPDU >> even when the BA win size is set to max of 64. i was testing this by >> fixing >> the rate at MCS 15 >> >> Is there anything else i need to do to force the driver to aggregate more >> MPDU's in an AMPDU ? >> >> >> >> BA Win Size No. of MPDU's Throughput(Mbps) >> aggregated >> >> 1. 64 7-8 85.7 >> >> 2. 32 6-7 84.2 >> >> 3. 16 6-7 81.7 >> >> 4. 8 6-7 79.9 >> >> 5. 4 5 84.7 >> >> 6. 2 3 71.8 >> >> 7. 1 2 73.5 >> >> >> Thanks >> ram >> _______________________________________________ >> firstname.lastname@example.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-wireless >> To unsubscribe, send any mail to " >> freebsd-wireless-unsubscr...@freebsd.org" >> > > _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-wireless To unsubscribe, send any mail to "freebsd-wireless-unsubscr...@freebsd.org"