Increase RX ring size by default

tunings/base.sh

@@ -17,7 +17,7 @@ $CPUPOWER frequency-set -f 2.7GHz || true # This can throw out errors but it's g
 
 # Default non-polling NIC settings
 # ethtool may fail without fatal errors (e.g. when it made no changes)
-ethtool -G $NET_IF rx 1024 || true
+ethtool -G $NET_IF rx 8192 || true # Default to a large RX ring size to avoid drops at high rates
 ethtool -C $NET_IF rx-usecs  16 rx-frames   44 adaptive-rx on || true
 ethtool -C $NET_IF tx-usecs  16 tx-frames   16 adaptive-tx off || true
 sysctl net.core.busy_poll=0