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| author | Christoph Paasch <christoph.paasch@uclouvain.be> | 2013-03-17 08:23:34 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-03-17 14:35:13 -0400 |
| commit | 1a2c6181c4a1922021b4d7df373bba612c3e5f04 (patch) | |
| tree | 1346c9b1db83495a98fbcf95f8e521c67fc55cb9 /net/dccp | |
| parent | 94d8f2b133c9ff97105adc1233d1a35e16e1e7a6 (diff) | |
| download | linux-stable-1a2c6181c4a1922021b4d7df373bba612c3e5f04.tar.gz linux-stable-1a2c6181c4a1922021b4d7df373bba612c3e5f04.tar.bz2 linux-stable-1a2c6181c4a1922021b4d7df373bba612c3e5f04.zip | |
tcp: Remove TCPCT
TCPCT uses option-number 253, reserved for experimental use and should
not be used in production environments.
Further, TCPCT does not fully implement RFC 6013.
As a nice side-effect, removing TCPCT increases TCP's performance for
very short flows:
Doing an apache-benchmark with -c 100 -n 100000, sending HTTP-requests
for files of 1KB size.
before this patch:
average (among 7 runs) of 20845.5 Requests/Second
after:
average (among 7 runs) of 21403.6 Requests/Second
Signed-off-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/dccp')
| -rw-r--r-- | net/dccp/ipv4.c | 5 | ||||
| -rw-r--r-- | net/dccp/ipv6.c | 5 |
2 files changed, 4 insertions, 6 deletions
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index 4f9f5eb478f1..ebc54fef85a5 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -500,8 +500,7 @@ static struct dst_entry* dccp_v4_route_skb(struct net *net, struct sock *sk, return &rt->dst; } -static int dccp_v4_send_response(struct sock *sk, struct request_sock *req, - struct request_values *rv_unused) +static int dccp_v4_send_response(struct sock *sk, struct request_sock *req) { int err = -1; struct sk_buff *skb; @@ -658,7 +657,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb) dreq->dreq_gss = dreq->dreq_iss; dreq->dreq_service = service; - if (dccp_v4_send_response(sk, req, NULL)) + if (dccp_v4_send_response(sk, req)) goto drop_and_free; inet_csk_reqsk_queue_hash_add(sk, req, DCCP_TIMEOUT_INIT); diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index 6e05981f271e..9c61f9c02fdb 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -213,8 +213,7 @@ out: } -static int dccp_v6_send_response(struct sock *sk, struct request_sock *req, - struct request_values *rv_unused) +static int dccp_v6_send_response(struct sock *sk, struct request_sock *req) { struct inet6_request_sock *ireq6 = inet6_rsk(req); struct ipv6_pinfo *np = inet6_sk(sk); @@ -428,7 +427,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb) dreq->dreq_gss = dreq->dreq_iss; dreq->dreq_service = service; - if (dccp_v6_send_response(sk, req, NULL)) + if (dccp_v6_send_response(sk, req)) goto drop_and_free; inet6_csk_reqsk_queue_hash_add(sk, req, DCCP_TIMEOUT_INIT); |