1 .\" Licensed under the OpenIB.org BSD license (FreeBSD Variant) - See COPYING.md
2 .TH "CMTIME" 1 "2017-04-28" "librdmacm" "librdmacm" librdmacm
4 cmtime \- RDMA CM connection steps timing test.
8 \fIcmtime\fR [-s server_address] [-b bind_address]
9 [-c connections] [-p port_number]
10 [-r retries] [-t timeout_ms]
13 Determines min and max times for various "steps" in RDMA CM
14 connection setup and teardown between a client and server
17 "Steps" that are timed are: create id, bind address, resolve address,
18 resolve route, create qp, connect, disconnect, and destroy.
22 The network name or IP address of the server system listening for
23 connections. The used name or address must route over an RDMA device.
24 This option must be specified by the client.
27 The local network address to bind to.
30 The number of connections to establish between the client and
34 The server's port number.
37 Number of retries when resolving address or route. (default 2)
40 Timeout in millseconds (ms) when resolving address or
41 route. (default 2000 - 2 seconds)
43 Basic usage is to start cmtime on a server system, then run
44 cmtime -s server_name on a client system.
46 Because this test maps RDMA resources to userspace, users must ensure
47 that they have available system resources and permissions. See the
48 libibverbs README file for additional details.