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| author | Yuchung Cheng <ycheng@google.com> | 2017-07-20 01:41:26 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-20 02:14:10 +0300 |
| commit | bb4d991a28cc86a2dfbeefeff32911ca9f779c18 (patch) | |
| tree | 6fd415a7d0b54a9e639067375013fe8f2c3a48b7 /mm/util.c | |
| parent | c4b2bf6b4a35348fe6d1eb06928eb68d7b9d99a9 (diff) | |
| download | linux-bb4d991a28cc86a2dfbeefeff32911ca9f779c18.tar.xz | |
tcp: adjust tail loss probe timeout
This patch adjusts the timeout formula to schedule the TCP loss probe
(TLP). The previous formula uses 2*SRTT or 1.5*RTT + DelayACKMax if
only one packet is in flight. It keeps a lower bound of 10 msec which
is too large for short RTT connections (e.g. within a data-center).
The new formula = 2*RTT + (inflight == 1 ? 200ms : 2ticks) which
performs better for short and fast connections.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'mm/util.c')
0 files changed, 0 insertions, 0 deletions