diff options
| author | Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> | 2009-02-28 04:44:37 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-02 03:00:15 -0800 |
| commit | 758ce5c8d11d6fc57fe5f1dbc237aa8ff6386eac (patch) | |
| tree | 45b3dff5ca179712d50cdeae45846db8ffd51caa /net/ipv4/tcp_bic.c | |
| parent | 571a5dd8d01f2a7e279c502fa220a69262d73694 (diff) | |
| download | blackbird-op-linux-758ce5c8d11d6fc57fe5f1dbc237aa8ff6386eac.tar.gz blackbird-op-linux-758ce5c8d11d6fc57fe5f1dbc237aa8ff6386eac.zip | |
tcp: add helper for AI algorithm
It seems that implementation in yeah was inconsistent to what
other did as it would increase cwnd one ack earlier than the
others do.
Size benefits:
bictcp_cong_avoid | -36
tcp_cong_avoid_ai | +52
bictcp_cong_avoid | -34
tcp_scalable_cong_avoid | -36
tcp_veno_cong_avoid | -12
tcp_yeah_cong_avoid | -38
= -104 bytes total
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_bic.c')
| -rw-r--r-- | net/ipv4/tcp_bic.c | 11 |
1 files changed, 1 insertions, 10 deletions
diff --git a/net/ipv4/tcp_bic.c b/net/ipv4/tcp_bic.c index 7eb7636db0d0..3b53fd1af23f 100644 --- a/net/ipv4/tcp_bic.c +++ b/net/ipv4/tcp_bic.c @@ -149,16 +149,7 @@ static void bictcp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight) tcp_slow_start(tp); else { bictcp_update(ca, tp->snd_cwnd); - - /* In dangerous area, increase slowly. - * In theory this is tp->snd_cwnd += 1 / tp->snd_cwnd - */ - if (tp->snd_cwnd_cnt >= ca->cnt) { - if (tp->snd_cwnd < tp->snd_cwnd_clamp) - tp->snd_cwnd++; - tp->snd_cwnd_cnt = 0; - } else - tp->snd_cwnd_cnt++; + tcp_cong_avoid_ai(tp, ca->cnt); } } |
