From: Stephen Hemminger Date: Wed, 8 Aug 2007 01:29:05 +0000 (-0700) Subject: [TCP]: H-TCP maxRTT estimation at startup X-Git-Tag: v2.6.23-rc3~70^2 X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f34d1955dff5a5769d24614d137003f0316406f3;p=pandora-kernel.git [TCP]: H-TCP maxRTT estimation at startup Small patch to H-TCP from Douglas Leith. Fix estimation of maxRTT. The original code ignores rtt measurements during slow start (via the check tp->snd_ssthresh < 0xFFFF) yet this is probably a good time to try to estimate max rtt as delayed acking is disabled and slow start will only exit on a loss which presumably corresponds to a maxrtt measurement. Second, the original code (via the check htcp_ccount(ca) > 3) ignores rtt data during what it estimates to be the first 3 round-trip times. This seems like an unnecessary check now that the RCV timestamp are no longer used for rtt estimation. Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- Reading git-diff-tree failed