On Sat, 03 Jun 2006 12:46:57 -0400 John Heffner <[EMAIL PROTECTED]> wrote:
> Stephen Hemminger wrote: > > Rolled my sleeve's up and gave this a try... > > > > This is a implementation of Sally Floyd's Limited Slow Start > > for Large Congestion Windows. > > Limited slow start is useful as a work-around for bottleneck queues that > are inappropriately short. I don't think it's good to run it all the > time by default (with a max_ssthresh < infinity), because it slows down > flows on healthy paths, and introduces another non-scalable parameter to > TCP. > > I see it as potentially useful as a per-route parameter, where you set > it deliberately to work around some known problematic path. A sysctl > with a default value of infinity might be okay as well. > > Practically speaking, we've had this in the Web100 patch for a long time > (and still do, look for WAD_MaxSsthresh), but I've never found it all > that useful. If the bottleneck queue is too short, you usually end up > getting screwed other ways too. > > -John I moved it off to tcp_highspeed.c only. That is seems appropriate because that is where you put the related RFC. - 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
