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Add details for testing RDMA server #217

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Add details for testing RDMA server #217

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2 changes: 2 additions & 0 deletions topics/RDMA.md
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Expand Up @@ -40,6 +40,8 @@ Or append `loadmodule src/valkey-rdma.so bind=192.168.122.100 port=6379` in valk

./src/valkey-server valkey.conf

To test whether the RDMA server is working properly, do not use `valkey-cli`, which actually uses IPoIB. Instead, there is a shell script `./runtest-rdma`, which simply wraps a Python script `./tests/rdma/run.py`. The Python script would start a server locally, start a client locally and test for ~6000 KVs using RDMA write/read operations. To test remote RDMA connections, specify `./tests/rdma/rdma-test -h $remote_rdma_ip`.

### Prerequisites
Note that the network interface (192.168.122.100 of this example) should support
RDMA. To test a server supports RDMA or not:
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