diff options
| author | Max Matveev <makc@redhat.com> | 2011-06-19 22:08:10 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2011-07-04 19:14:09 -0700 |
| commit | a6e1204b82d3e8d7ba1baca35bdb595c722105eb (patch) | |
| tree | 55dc5a6197d1a1e1087ebf199ae206b8751b1236 /Documentation | |
| parent | 4924f44b97a034dbf44c14b709b0b0907ee23f04 (diff) | |
Update description of net.sctp.sctp_rmem and net.sctp.sctp_wmem tunables
sctp does not use second and third ("default" and "max") values
of sctp_rmem tunable. The format is the same as tcp_rmem
but the meaning is different so make the documentation explicit to
avoid confusion.
sctp_wmem is not used at all.
Acked-by: Neil Horman <nhorman@tuxdriver.com>
Signed-off-by: Max Matveev <makc@redhat.com>
Reviewed-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/networking/ip-sysctl.txt | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 3dcb26cd33f..1a6de5b5227 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -1455,10 +1455,17 @@ sctp_mem - vector of 3 INTEGERs: min, pressure, max Default is calculated at boot time from amount of available memory. sctp_rmem - vector of 3 INTEGERs: min, default, max - See tcp_rmem for a description. + Only the first value ("min") is used, "default" and "max" are + ignored. + + min: Minimal size of receive buffer used by SCTP socket. + It is guaranteed to each SCTP socket (but not association) even + under moderate memory pressure. + + Default: 1 page sctp_wmem - vector of 3 INTEGERs: min, default, max - See tcp_wmem for a description. + Currently this tunable has no effect. addr_scope_policy - INTEGER Control IPv4 address scoping - draft-stewart-tsvwg-sctp-ipv4-00 |