diff options
| 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 /drivers/infiniband | |
| parent | 94d8f2b133c9ff97105adc1233d1a35e16e1e7a6 (diff) | |
| download | blackbird-op-linux-1a2c6181c4a1922021b4d7df373bba612c3e5f04.tar.gz blackbird-op-linux-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 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/cxgb4/cm.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/cxgb4/cm.c b/drivers/infiniband/hw/cxgb4/cm.c index 8dcc84fd9d30..54fd31fcc332 100644 --- a/drivers/infiniband/hw/cxgb4/cm.c +++ b/drivers/infiniband/hw/cxgb4/cm.c @@ -2915,7 +2915,7 @@ static void build_cpl_pass_accept_req(struct sk_buff *skb, int stid , u8 tos) */ memset(&tmp_opt, 0, sizeof(tmp_opt)); tcp_clear_options(&tmp_opt); - tcp_parse_options(skb, &tmp_opt, NULL, 0, NULL); + tcp_parse_options(skb, &tmp_opt, 0, NULL); req = (struct cpl_pass_accept_req *)__skb_push(skb, sizeof(*req)); memset(req, 0, sizeof(*req)); |
