rdma_helpers

Libs, scripts and apps to help debug RDMA

QPC lib (prints everything you need to know about the QP)

To build the lib to trace QPC: g++ -I/usr/include/infiniband -shared -fPIC qp_debug_lib.cpp -o libqpdebug.so

To link against the Lib: g++ -o test_app test_app.cpp -L. -lqpdebug -libverbs -lmlx5

rdma_profiler

The RDMA profiler is an app that would profile the network for you, meaning it will take the following timestamps:

1. post timestamp
2. doorbell
3. CQE timestamp
4. poll CQ And will create the statistics of the WQEs based on breakdown latency.

[in the initial draft only the facilities are introduced]

This is very usufull for larger clusters where you should know which of the components are introducing latency, and a very strong debugging mechanism.

To build: cd rdma_profiler mkdir build cmake .. make