1CMTIME(1)                          librdmacm                         CMTIME(1)
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NAME

6       cmtime - RDMA CM connection steps timing test.
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SYNOPSIS

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

14       Determines  min and max times for various "steps" in RDMA CM connection
15       setup and teardown between a client and server application.
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17       "Steps" that are timed are: create id, bind address,  resolve  address,
18       resolve route, create qp, connect, disconnect, and destroy.
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OPTIONS

21       -s server_address
22              The  network  name  or IP address of the server system listening
23              for connections.  The used name or address must  route  over  an
24              RDMA device.  This option must be specified by the client.
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26       -b bind_address
27              The local network address to bind to.
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29       -c connections
30              The  number  of  connections to establish between the client and
31              server.  (default 100)
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33       -p port_number
34              The server's port number.
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36       -r retries
37              Number of retries when resolving address or route.  (default 2)
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39       -t timeout_ms
40              Timeout in millseconds (ms) when  resolving  address  or  route.
41              (default 2000 - 2 seconds)
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NOTES

44       Basic  usage  is to start cmtime on a server system, then run cmtime -s
45       server_name on a client system.
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47       Because this test maps RDMA resources to userspace, users  must  ensure
48       that  they  have  available  system resources and permissions.  See the
49       libibverbs README file for additional details.
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SEE ALSO

52       rdma_cm(7)
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56librdmacm                         2017-04-28                         CMTIME(1)
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