Re: CentOS 7 KVM-SR-IOV Performance?

Thanks, alkx!

I already tested w/ ib_read_bw and ib_send_bw also. I pasted sample output as follows. VM->Host is bad as expected in case of size<32K.

Let me check it again while changing the speed.

[1] hostB -> vm@hostA

# ib_write_bw -R -F $hostA_vm_IP -a

#bytes     #iterations    BW peak[MB/sec]    BW average[MB/sec]   MsgRate[Mpps]

4096       5000             4313.10            4311.29                   1.103690

[2] vm@hostA -> hostB

# ib_write_bw -R -F $hostB_IP -a

#bytes     #iterations    BW peak[MB/sec]    BW average[MB/sec]   MsgRate[Mpps]

4096       5000             806.55             802.18                    0.205359