On Wed, Nov 28, 2007 at 03:47:25PM -0800, Stephen Hemminger wrote:
quoted text
> Lachlan Andrew observed that my TCP-Illinois implementation uses the
> beta value incorrectly:
>   The parameter  beta  in the paper specifies the amount to decrease
>   *by*:  that is, on loss,
>      W <-  W -  beta*W
>   but in   tcp_illinois_ssthresh() uses  beta  as the amount
>   to decrease  *to*: W <- beta*W
> 
> This bug makes the Linux TCP-Illinois get less-aggressive on uncongested network,
> hurting performance. Note: since the base beta value is .5, it has no
> impact on a congested network.
> 
> Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>

Applied to net-2.6.  Thanks Stephen!
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