diff --git a/share/man/man7/tuning.7 b/share/man/man7/tuning.7 index 80df23f947a1..3f120f94390d 100644 --- a/share/man/man7/tuning.7 +++ b/share/man/man7/tuning.7 @@ -424,7 +424,8 @@ sysctls are of particular interest if you are running network intensive applications. This controls the amount of send and receive buffer space allowed for any given TCP connection. -The default is 16K. +The default sending buffer is 32k; the default receiving buffer +is 64k. You can often improve bandwidth utilization by increasing the default at the cost of eating up more kernel memory for each connection.