Chelsio Communications Terminator Series Installation And User Manual page 117

Unified wire for linux
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Chapter VI. WD-UDP
Then on r9, we run udptest to port 9000 to see the host stack UDP latency:
[root@r9 ~]# /usr/local/src/hpcbench/udp/udptest -r 5 -a -h 192.168.1.112 -p
9000
Running the same test with libcxgb4_sock:
[root@r9 ~]# LD_PRELOAD=libcxgb4_sock.so /usr/local/src/hpcbench/udp/udptest
-r 5 -a -h 192.168.1.112 -p 9001
Determining if the application is being offloaded
To see if the application is being offloaded, open a window on one of the machines, and run
tcpdump
against the Chelsio interface. If you see minimal UDP output on the interface, then the
UDP traffic is being properly offloaded.
Chelsio Unified Wire for Linux
117

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