NAME

       riostream - zero-copy streaming over RDMA ping-pong test.

SYNOPSIS

       riostream [-s server_address] [-b bind_address] [-B buffer_size]
                      [-I iterations] [-C transfer_count]
                      [-S transfer_size] [-p server_port] [-T test_option]

DESCRIPTION

       Uses  the streaming over RDMA protocol (rsocket) to connect and exchange data between a client and server
       application.

OPTIONS

       -s server_address
              The network name or IP address of the server system listening for connections.  The used  name  or
              address must route over an RDMA device.  This option must be specified by the client.

       -b bind_address
              The local network address to bind to.

       -B buffer_size
              Indicates the size of the send and receive network buffers.

       -I iterations
              The number of times that the specified number of messages will be exchanged between the client and
              server.  (default 1000)

       -C transfer_count
              The number of messages to transfer from the client to the server and back again on each iteration.
              (default 1)

       -S transfer_size
              The size of each send transfer, in bytes.  (default 1000)  If 'all' is specified, rstream will run
              a series of tests of various sizes.

       -p server_port
              The server's port number.

       -T test_option
              Specifies test parameters.  Available options are:

       a | async - uses asynchronous operation (e.g. select / poll)

       b | blocking - uses blocking calls

       n | nonblocking - uses non-blocking calls

       v | verify - verifies data transfers

NOTES

       Basic usage is to start riostream on a server system, then run  riostream  -s  server_name  on  a  client
       system.   By default, riostream will run a series of latency and bandwidth performance tests.  Specifying
       a different iterations, transfer_count, or transfer_size will run a user customized  test  using  default
       values where none have been specified.

       Because  this  test  maps  RDMA resources to userspace, users must ensure that they have available system
       resources and permissions.  See the libibverbs README file for additional details.

SEE ALSO

       rdma_cm(7) rstream(1)