ibv_xsrq_pingpong (1) Linux Manual Page

ibv_xsrq_pingpong – simple InfiniBand shared receive queue test

Synopsis

ibv_xsrq_pingpong [-p port] [-d device] [-i ib port] [-s size] [-m mtu] [-c clients] [-n num_tests] [-l sl] [-e] HOSTNAME

ibv_xsrq_pingpong [-p port] [-d device] [-i ib port] [-s size] [-m mtu] [-c clients] [-n num_tests] [-l sl] [-e]

Description

Run a simple ping-pong test over InfiniBand via the extended reliable connected (XRC) transport service, using a shared receive queue (SRQ).

Options

-p, –port=PORT

use TCP port PORT for initial synchronization (default 18515)

-d, –ib-dev=DEVICE

use IB device DEVICE (default first device found)

-i, –ib-port=PORT

use IB port PORT (default port 1)

-s, –size=SIZE

ping-pong messages of size SIZE (default 4096)

-m, –mtu=MTU

use path mtu of size MTU (default 2048)

-c, –clients=CLIENTS

number of clients CLIENTS (on server only, default 1)

-n, –num-tests=NUM_TESTS

perform NUM_TESTS tests per client (default 5)

-l, –sl=SL

use SL as the service level value (default 0)

-e, –events

sleep while waiting for work completion events (default is to poll for completions)

See Also

ibv_rc_pingpong(1), ibv_uc_pingpong(1), ibv_ud_pingpong(1) ibv_srq_pingpong(1)

Authors

Roland Dreier

<roland [at] purestorage.com>

Jarod Wilson

<jarod [at] redhat.com>

Bugs

The network synchronization between client and server instances is weak, and does not prevent incompatible options from being used on the two instances. The method used for retrieving work completions is not strictly correct, and race conditions may cause failures on some systems.