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SubjectRe: [PATCH] tcp_cubic: faster cube root
From: Stephen Hemminger <>
Date: Tue, 6 Mar 2007 14:47:06 -0800

> The Newton-Raphson method is quadratically convergent so
> only a small fixed number of steps are necessary.
> Therefore it is faster to unroll the loop. Since div64_64 is no longer
> inline it won't cause code explosion.
> Also fixes a bug that can occur if x^2 was bigger than 32 bits.
> Signed-off-by: Stephen Hemminger <>

Applied, thanks Stephen.
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