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| author | Eric Dumazet <edumazet@google.com> | 2018-06-27 18:47:21 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-06-28 16:01:04 +0300 |
| commit | 15ecbe94a45ef88491ca459b26efdd02f91edb6d (patch) | |
| tree | def3573e62862a41bb840c8fcdca92665484131c /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | 8e75887d321d102200abf3a9fa621e2c10ff4cc5 (diff) | |
| download | linux-15ecbe94a45ef88491ca459b26efdd02f91edb6d.tar.xz | |
tcp: add one more quick ack after after ECN events
Larry Brakmo proposal ( https://patchwork.ozlabs.org/patch/935233/
tcp: force cwnd at least 2 in tcp_cwnd_reduction) made us rethink
about our recent patch removing ~16 quick acks after ECN events.
tcp_enter_quickack_mode(sk, 1) makes sure one immediate ack is sent,
but in the case the sender cwnd was lowered to 1, we do not want
to have a delayed ack for the next packet we will receive.
Fixes: 522040ea5fdd ("tcp: do not aggressively quick ack after ECN events")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: Neal Cardwell <ncardwell@google.com>
Cc: Lawrence Brakmo <brakmo@fb.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions