4 ms·
"net.core.wmem_max: the upper limit of the TCP send buffer size. Similar to net.core.rmem_max (but for transimission)." and then we have `net.ipv4.tcp_wmem` wh
by betaby 2y ago
"net.core.wmem_max: the upper limit of the TCP send buffer size. Similar to net.core.rmem_max (but for transimission)."
and then we have `net.ipv4.tcp_wmem` which bring two questions: 1. why there is no IPv6 equivalent and 2. what's the difference from `net.core.wmem_max` ?
- adrian_b 2y agonet.core.wmem_max is a maximum value, as its name says. net.ipv4.tcp_wmem is a triple value, with minimum, default and maximum values. The maximum given here cannot exceed the previous value. TCP is a protocol that should be the same regardless whether it is transported by IPv4 or by IPv6. See e.g. https://docs.redhat.com/en/documentation/red_hat_data_grid/7.2/html/performance_tuning_guide/networking_configuration#adjusting_send_receive_window_settings https://docs.redhat.com/en/documentation/red_hat_data_grid/7...
- betaby 2y agoSo `net.ipv4.tcp_wmem` applies to IPv4 and IPv6? If so it's absolutely not obvious.
- woleium 2y agoThe three problems of computing: 0. Cache invalidation 1. Naming things 2. Off by one errors
- jagged-chisel 2y agoTwo problems