performance of two 82599 nics at a host
From: Bokhan Artem <hidden>
Date: 2014-10-15 10:52:33
Hello, everyone.
I have two 82599 nics connected to different numa nodes. Each nic can
recieve up to 12Mpps 64-byte packets.
But when I send traffic to both nics only 5Mpps+5Mpps can be recieved.
May someboby help if it's driver, kernel or hardware bottleneck?
Configuration:
2 x E5-2667 v2@3.30GHz
3.14.19 kernel, 3.22.3 ixgbe
8 queues at each nic with affinity set
NIC1
--pkt/eth2- --pkt/eth5-
#recv #send:#recv #send
0 0 :12.6M 0
0 0 :12.7M 0
0 0 :12.7M 0
0 0 :12.7M 0
0 0 :12.7M 0
NIC2
--pkt/eth2- --pkt/eth5-
#recv #send:#recv #send
12.7M 0 : 0 0
12.7M 0 : 0 0
12.6M 0 : 0 0
12.7M 0 : 0 0
12.6M 0 : 0 0
both
--pkt/eth2- --pkt/eth5-
#recv #send:#recv #send
5099k 0 :5758k 0
5467k 0 :5325k 0
5050k 0 :5432k 0
5206k 0 :5133k 0
5162k 0 :5164k 0