[ Thanks to Susegeek
for this link. ]
“The parameters that we focus to improve performance
arenet.core.rmem_max
Sets the Maximum Socket Receive Buffer for all protocolsnet.core.wmem_max
sets the Maximum Socket Send Buffer for all protocolsnet.ipv4.tcp_rmem
Sets the Maximum Socket Receive Buffer for TCP Protocol (overides
the defaults set by net.core.rmem_default)”