NOT see any rocev2 packet
Closed this issue · 9 comments
Hi all，i run redis-benchmark with libvma，and expect the communication of redis using rocev2，here is my command:
Client： D_PRELOAD=/usr/lib64/libvma.so redis-benchmark -h 10.39.30.220 -p 6379 -c 1 -n 1000000 -t get
Server：LD_PRELOAD=/usr/lib64/libvma.so redis-server /etc/redis.conf
My HCA is mlx5，and show_gids，here is the output：
mlx5_2 1 3 0000:0000:0000:0000:0000:ffff:0a27:1ee7 10.39.30.231 v2 ens8
the redis communication is ok， but i can not see any rocev2 packets，seem like the libvma use something like cx5 blueflame，and transport with ethernet packet。
Hello @forsakening,
Could you try following way as https://hub.docker.com/r/mellanox/tcpdump-rdma
@forsakening can the issue be closed?
@igor-ivanov hi，i am using tcpdump-rdma，but the capture packet is all raw tcp packet，not rocev2 packet
so redis uses socket tcp connections and you see tcp packets.
@igor-ivanov ahhh，so libvma only use rdma verbs，but the underlay packet is raw Ethernet packet， not the rocev2 udp packet ？
libvma accelerates socket based application. See left branch on the picture.
@igor-ivanov yeah i know libvma call the rdma verbs ，but my test is under cx5 nic，and the packet is raw ethernet，not the rocev2 packet . in my opinion, libvma call rdma verbs , the packet shoule be rocev2 (under cx5).
no, vma forms tcp/udp packets and send them
@igor-ivanov thank you very much