From 758ce5c8d11d6fc57fe5f1dbc237aa8ff6386eac Mon Sep 17 00:00:00 2001 From: Ilpo Järvinen Date: Sat, 28 Feb 2009 04:44:37 +0000 Subject: tcp: add helper for AI algorithm MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: David S. Miller --- net/ipv4/tcp_scalable.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) (limited to 'net/ipv4/tcp_scalable.c') diff --git a/net/ipv4/tcp_scalable.c b/net/ipv4/tcp_scalable.c index 4660b088a8c..a76513779e2 100644 --- a/net/ipv4/tcp_scalable.c +++ b/net/ipv4/tcp_scalable.c @@ -24,14 +24,8 @@ static void tcp_scalable_cong_avoid(struct sock *sk, u32 ack, u32 in_flight) if (tp->snd_cwnd <= tp->snd_ssthresh) tcp_slow_start(tp); - else { - tp->snd_cwnd_cnt++; - if (tp->snd_cwnd_cnt > min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT)){ - if (tp->snd_cwnd < tp->snd_cwnd_clamp) - tp->snd_cwnd++; - tp->snd_cwnd_cnt = 0; - } - } + else + tcp_cong_avoid_ai(tp, min(tp->snd_cwnd, TCP_SCALABLE_AI_CNT)); } static u32 tcp_scalable_ssthresh(struct sock *sk) -- cgit v1.2.3-70-g09d2