NAME

cmtime - RDMA CM connection steps timing test.

SYNOPSIS

cmtime [-s server_address] [-b bind_address]
			[-c connections] [-p port_number]
			[-r retries] [-t timeout_ms]

DESCRIPTION

Determines min and max times for various "steps" in RDMA CM connection setup and teardown between a client and server application.

"Steps" that are timed are: create id, bind address, resolve address, resolve route, create qp, connect, disconnect, and destroy.

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.
-c connections: The number of connections to establish between the client and server. (default 100)
-p port_number: The server's port number.
-r retries: Number of retries when resolving address or route. (default 2)
-t timeout_ms: Timeout in millseconds (ms) when resolving address or route. (default 2000 - 2 seconds)

NOTES

Basic usage is to start cmtime on a server system, then run cmtime -s server_name on a client system.

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.

NAME

SYNOPSIS

DESCRIPTION

OPTIONS

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SEE ALSO