sysctl.conf

dev.em.0.rx_int_delay=200
dev.em.0.tx_int_delay=200
dev.em.0.rx_abs_int_delay=4000
dev.em.0.tx_abs_int_delay=4000
dev.em.0.rx_processing_limit=4096

dev.em.1.rx_int_delay=200
dev.em.1.tx_int_delay=200
dev.em.1.rx_abs_int_delay=4000
dev.em.1.tx_abs_int_delay=4000
dev.em.1.rx_processing_limit=4096

dev.igb.0.rx_processing_limit=4096
dev.igb.1.rx_processing_limit=4096

net.graph.maxdgram=8388608
net.graph.recvspace=8388608
kern.ipc.nmbclusters=400000
kern.ipc.maxsockbuf=83886080

net.inet.ip.dummynet.pipe_slot_limit=1000
net.inet.ip.dummynet.io_fast=1

net.inet.ip.intr_queue_maxlen=10240
net.inet.ip.fastforwarding=1
net.inet.icmp.icmplim=5000