On Tue, 2006-17-10 at 09:34 +1000, Russell Stuart wrote: > The Linux traffic's control engine inaccurately calculates > transmission times for packets sent over ADSL links. For > some packet sizes the error rises to over 50%. This occurs > because ADSL uses ATM as its link layer transport, and ATM > transmits packets in fixed sized 53 byte cells. > > This changes the kernel rate table lookup, to be able to lookup > packet transmission times over all ATM links, including ADSL, > with perfect accuracy. The accuracy is dependent on the rate > table that is calculated in userspace by iproute2 command tc. > > A longer presentation of the patch, its rational, what it > does and how to use it can be found here: > http://www.stuart.id.au/russell/files/tc/tc-atm/ > > A earlier version of the patch, and a _detailed_ empirical > investigation of its effects can be found here: > http://www.adsl-optimizer.dk/ > > Signed-off-by: Jesper Dangaard Brouer <[EMAIL PROTECTED]> > Signed-off-by: Russell Stuart <[EMAIL PROTECTED]>
ACKed-by: Jamal Hadi Salim When Patrick has his patch ready after this goes in we can revisit. cheers, jamal - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
