path: root/Documentation
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authorChristoph Paasch <christoph.paasch@uclouvain.be>2013-03-17 08:23:34 +0000
committerDavid S. Miller <davem@davemloft.net>2013-03-17 14:35:13 -0400
commit1a2c6181c4a1922021b4d7df373bba612c3e5f04 (patch)
tree1346c9b1db83495a98fbcf95f8e521c67fc55cb9 /Documentation
parentdrivers: net: irda: use resource_size() in au1k_ir.c (diff)
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 'Documentation')
1 files changed, 0 insertions, 8 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt
index 18a24c405ac0..17953e2bc3e9 100644
--- a/Documentation/networking/ip-sysctl.txt
+++ b/Documentation/networking/ip-sysctl.txt
@@ -175,14 +175,6 @@ tcp_congestion_control - STRING
is inherited.
[see setsockopt(listenfd, SOL_TCP, TCP_CONGESTION, "name" ...) ]
-tcp_cookie_size - INTEGER
- Default size of TCP Cookie Transactions (TCPCT) option, that may be
- overridden on a per socket basis by the TCPCT socket option.
- Values greater than the maximum (16) are interpreted as the maximum.
- Values greater than zero and less than the minimum (8) are interpreted
- as the minimum. Odd values are interpreted as the next even value.
- Default: 0 (off).
tcp_dsack - BOOLEAN
Allows TCP to send "duplicate" SACKs.