Fixing Half Network Bandwidth Issue
Fixing Half Network Bandwidth Issue
A little while back I got a small PC to turn into a small server running True NAS. While testing the network performance with iperf3 I noticed that the network bandwidth when sending data from the server was only half of the availabe bandwidth of network. The problem was not specific to True NAS but rather an issues introduced in the underlying Linux driver for the network card . In a nutshell the temporary fix is to disable the offloading feature of the specific network card, i.e.:
> ethtool -K [eth-interface] tso off gso off