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| author | Cong Wang <amwang@redhat.com> | 2013-06-11 18:54:39 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-06-12 15:10:13 -0700 |
| commit | e3d73bcedfdf66d21349fee00241b0931d28a943 (patch) | |
| tree | 7a7ea81056416e79578c446f33ce0e3a314a2c45 /Documentation | |
| parent | 944a1376b6ca1f00cc67f7d319afd55d5d9afba5 (diff) | |
| download | linux-e3d73bcedfdf66d21349fee00241b0931d28a943.tar.bz2 | |
net: add doc for ip_early_demux sysctl
commit 6648bd7e0e62c0c8c03b (ipv4: Add sysctl knob to control
early socket demux) introduced such sysctl, but forgot to add
doc into Documentation/networking/ip-sysctl.txt. This patch adds it.
Basically I grab the doc from the description of commit 41063e9dd11956f2d285
(ipv4: Early TCP socket demux.) and the above commit.
Cc: Eric Dumazet <edumazet@google.com>
Cc: Alexander Duyck <alexander.h.duyck@intel.com>
Cc: David S. Miller <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/ip-sysctl.txt | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 9cea5d3b3c50..36e5a402ed0e 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -685,6 +685,15 @@ ip_dynaddr - BOOLEAN occurs. Default: 0 +ip_early_demux - BOOLEAN + Optimize input packet processing down to one demux for + certain kinds of local sockets. Currently we only do this + for established TCP sockets. + + It may add an additional cost for pure routing workloads that + reduces overall throughput, in such case you should disable it. + Default: 1 + icmp_echo_ignore_all - BOOLEAN If set non-zero, then the kernel will ignore all ICMP ECHO requests sent to it. |