User Manual

InfiniBand Fabric UtilitiesRev 2.2-1.0.1
Mellanox Technologies
284
Additional Options
The table below lists the additional flags of the command
Table 58 - Additional ib_atomic_bw Flags and Options
Flag Description
--inline_recv=<size> Max size of message to be sent in inline receive
--output=<units> Set verbosity output level: bandwidth , message_rate,
latency_typical
--pkey_index=<pkey index> PKey index to use for QP
--report-both Report RX & TX results separately on Bidirectinal BW
tests
--report_gbits Report Max/Average BW of test in Gbit/sec (instead of
MB/sec)
--run_infinitely Run test forever, print results every <duration> seconds
.
9.5.8 ib_atomic_lat
Calculates the latency of RDMA Atomic transaction of message_size between a pair of
machines. One acts as a server and the other as a client. The client sends RDMA atomic opera-
tion and sample the CPU clock when it receives a successful completion, in order to calculate
latency
.
-R, --rdma_cm Connect QPs with rdma_cm and run test on those QPs
-S, --sl=<sl> SL (default 0)
-t, --tx-depth=<dep> Size of tx queue (default 128)
-T, --tos=<tos value> Set <tos_value> to RDMA-CM QPs. available 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
-V, --version Display version number
-w, --limit_bw Set verifier limit for bandwidth
-x, --gid-index=<index> Test uses GID with GID index (Default : IB - no gid .
ETH - 0)
-y, --limit_msgrate Set verifier limit for Msg Rate
-z, --com_rdma_cm Communicate with rdma_cm module to exchange data -
use regular QPs
Table 57 - ib_atomic_bw Flags and Options
Flag Description