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| author | Stephen Hemminger <shemminger@linux-foundation.org> | 2007-08-07 18:29:05 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2007-08-07 18:29:05 -0700 |
| commit | f34d1955dff5a5769d24614d137003f0316406f3 (patch) | |
| tree | 4787a616396aa8ea32bdb262043e7b784861cbeb /mm/madvise.c | |
| parent | 591e620693e71e24fb3450a4084217e44b7a60b6 (diff) | |
| download | linux-f34d1955dff5a5769d24614d137003f0316406f3.tar.bz2 | |
[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 <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/madvise.c')
0 files changed, 0 insertions, 0 deletions