Performance Tuning

ethtool -g - HW Ring Buffers
[root@perf10 ~]# ethtool -g eth2
Ring parameters for eth2:
Pre-set maximums:
RX: 16384
RX Mini: 0
RX Jumbo: 16384
TX: 16384
Current hardware settings:
RX: 1024
RX Mini: 1024
RX Jumbo: 512
TX: 1024
Typically these numbers correspond the number of buffers, not the
size of the buffer
With some NICs creating more buffers decreases the size of each
buffer which could add overhead