From: Eric Dumazet edumazet@google.com
commit 1d1be91254bbdd189796041561fd430f7553bb88 upstream.
tcp_rmem[1] has been changed to 131072, we should update the documentation to reflect this.
Fixes: a337531b942b ("tcp: up initial rmem to 128KB and SYN rwin to around 64KB") Signed-off-by: Eric Dumazet edumazet@google.com Reported-by: Zhibin Liu zhibinliu@google.com Cc: Yuchung Cheng ycheng@google.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- Documentation/networking/ip-sysctl.rst | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-)
--- a/Documentation/networking/ip-sysctl.rst +++ b/Documentation/networking/ip-sysctl.rst @@ -630,16 +630,15 @@ tcp_rmem - vector of 3 INTEGERs: min, de
default: initial size of receive buffer used by TCP sockets. This value overrides net.core.rmem_default used by other protocols. - Default: 87380 bytes. This value results in window of 65535 with - default setting of tcp_adv_win_scale and tcp_app_win:0 and a bit - less for default tcp_app_win. See below about these variables. + Default: 131072 bytes. + This value results in initial window of 65535.
max: maximal size of receive buffer allowed for automatically selected receiver buffers for TCP socket. This value does not override net.core.rmem_max. Calling setsockopt() with SO_RCVBUF disables automatic tuning of that socket's receive buffer size, in which case this value is ignored. - Default: between 87380B and 6MB, depending on RAM size. + Default: between 131072 and 6MB, depending on RAM size.
tcp_sack - BOOLEAN Enable select acknowledgments (SACKS).