tree 39479e9d761e53462bd05f979d0ced132bbfcb0a
parent 89b3d9aaf46791177c5a5fa07a3ed38a035b5ef5
author Stephen Hemminger <shemminger@osdl.org> 1135222356 -0800
committer David S. Miller <davem@sunset.davemloft.net> 1136322669 -0800

[TCP] cubic: use Newton-Raphson

Replace cube root algorithim with a faster version using Newton-Raphson.
Surprisingly, doing the scaled div64_64 is faster than a true 64 bit
division on 64 bit CPU's.

Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>