User Manual

Rev 2.2-1.0.1
Mellanox Technologies
285
Synopsis
Server
ib_atomic_lat [options]
Client
ib_atomic_lat [options] <hostname>
Options
The table below lists the various flags of the command.
Table 59 - ib_atomic_lat Flags and Options
Flag Description
-A, --atomic_type=<type> Type of atomic operation from
{CMP_AND_SWAP,FETCH_AND_ADD} (default
FETCH_AND_ADD)
-c, --connection=<RC/XRC/
DC>
Connection type RC/XRC/DC (default RC)
-C, --report-cycles Report times in cpu cycle units (default microseconds)
-d, --ib-dev=<dev> Use IB device <dev> (default first device found)
-D, --duration Run test for a customized period of seconds.
-e, --events Sleep on CQ events (default poll)
-f, --margin Measure results within margins. (default=2sec)
-h, --help Show this help screen.
-H, --report-histogram Print out all results (default print summary only)
-i, --ib-port=<port> Use port <port> of IB device (default 1)
-m, --mtu=<mtu> MTU size : 256 - 4096 (default port mtu)
-n, --iters=<iters> Number of exchanges (at least 5, default 1000)
-o, --outs=<num> Num of outstanding read/atom(default max of device)
-p, --port=<port> Listen on/connect to port <port> (default 18515)
-R, --rdma_cm Connect QPs with rdma_cm and run test on those QPs
-S, --sl=<sl> SL (default 0)
-T, --tos=<tos value> Set <tos_value> to RDMA-CM QPs. availible only with -
R flag. values 0-256 (default of
f)
-u, --qp-timeout=<timeout> QP timeout, timeout value is 4 usec * 2 ^(timeout),
default 14
-U, --report-unsorted (implies -H) print out unsorted results (default sorted)