-ar, --access_recvOnOff
If OnOff is non-zero, data is accessed once received. Otherwise, data is ignored. By default,
OnOff is 0. This can help to mimic some applications.
-ar1 Cause received data to be accessed.
-ap, --alt_portPort
Set alternate path port. This enables automatic path failover.
-lap, --loc_alt_portPort
Set local alternate path port. This enables automatic path failover.
-rap, --rem_alt_portPort
Set remote alternate path port. This enables automatic path failover.
-ca, --cpu_affinityPN
Set cpu affinity to PN. CPUs are numbered sequentially from 0. If PN is "any", any cpu is
allowed otherwise the cpu is limited to the one specified.
-lca, --loc_cpu_affinityPN
Set local processor affinity to PN.
-rca, --rem_cpu_affinityPN
Set remote processor affinity to PN.
-f, --flipOnOff
If non-zero, cause sender and receiver to play opposite roles.
-f1 Cause sender and receiver to play opposite roles.
-h, --helpTopic
Print out information about Topic. To see the list of topics, type qperf --help
-H, --hostHost
Run test between the current node and the qperf running on node Host. This can also be specified
as the first non-option argument.
-i, --idDevice:Port
Use RDMA Device and Port.
-li, --loc_idDevice:Port
Use local RDMA Device and Port.
-ri, --rem_idDevice:Port
Use remote RDMA Device and Port.
-lp, --listen_portPort
Set the port we listen on to ListenPort. This must be set to the same port on both the server and
client machines. The default value is 19765.
-oo, --loopVar:Init:Last:Incr
Run a test multiple times sequencing through a series of values. Var is the loop variable; Init
is the initial value; Last is the value it must not exceed and Incr is the increment. It is
useful to set the --verbose_used (-vu) option in conjunction with this option.
-m, --msg_sizeSize
Set the message size to Size. The default value varies by test. It is assumed that the value is
specified in bytes however, a trailing kib or K, mib or M, or gib or G indicates that the size is
being specified in kibibytes, mebibytes or gibibytes respectively while a trailing kb or k, mb or
m, or gb or g indicates kilobytes, megabytes or gigabytes respectively.
-mt, --mtu_sizeSize
Set the MTU size. Only relevant to the RDMA UC/RC tests. Units are specified in the same manner
as the --msg_size option.
-n, --no_msgsN
Set test duration by number of messages sent instead of time.
-cp, --cq_pollOnOff
Turn polling mode on or off. This is only relevant to the RDMA tests and determines whether they
poll or wait on the completion queues. If OnOff is 0, they wait; otherwise they poll.
-lcp, --loc_cq_pollOnOff
Locally turn polling mode on or off.
-rcp, --rem_cq_pollOnOff
Remotely turn polling mode on or off.
-cp1 Turn polling mode on.
-lcp1 Turn local polling mode on.
-rcp1 Turn remote polling mode on.
-ip, --ip_portPort
Use Port to run the socket tests. This is different from --listen_port which is used for
synchronization. This is only relevant for the socket tests and refers to the
TCP/UDP/SDP/RDS/SCTP port that the test is run on.
-e, --precisionDigits
Set the number of significant digits that are used to report results.
-nr, --rd_atomicMax
Set the number of in-flight operations that can be handled for a RDMA read or atomic operation to
Max. This is only relevant to the RDMA Read and Atomic tests.
-lnr, --loc_rd_atomicMax
Set local read/atomic count.
-rnr, --rem_rd_atomicMax
Set remote read/atomic count.
-sl, --service_levelSL
Set RDMA service level to SL. This is only used by the RDMA tests. The service level must be
between 0 and 15. The default service level is 0.
-lsl, --loc_service_levelSL
Set local service level.
-rsl, --rem_service_levelSL
Set remote service level.
-sb, --sock_buf_sizeSize
Set the socket buffer size. This is only relevant to the socket tests.
-lsb, --loc_sock_buf_sizeSize
Set local socket buffer size.
-rsb, --rem_sock_buf_sizeSize
Set remote socket buffer size.
-sp, --src_path_bitsN
Set source path bits. If the LMC is not zero, this will cause the connection to use a LID with the
low order LMC bits set to N.
-lsp, --loc_src_path_bitsN
Set local source path bits.
-rsp, --rem_src_path_bitsN
Set remote source path bits.
-sr, --static_rateRate
Force InfiniBand static rate. Rate can be one of: 2.5, 5, 10, 20, 30, 40, 60, 80, 120, 1xSDR (2.5
Gbps), 1xDDR (5 Gbps), 1xQDR (10 Gbps), 4xSDR (2.5 Gbps), 4xDDR (5 Gbps), 4xQDR (10 Gbps), 8xSDR
(2.5 Gbps), 8xDDR (5 Gbps), 8xQDR (10 Gbps).
-lsr, --loc_static_rate
Force local InfiniBand static rate
-rsr, --rem_static_rate
Force remote InfiniBand static rate
-t, --timeTime
Set test duration to Time. Specified in seconds however a trailing m, h or d indicates that the
time is specified in minutes, hours or days respectively.
-to, --timeoutTime
Set timeout to Time. This is the timeout used for various things such as exchanging messages.
The default is 5 seconds.
-lto, --loc_timeoutTime
Set local timeout to Time. This may be used on the server to set the timeout when initially
exchanging data with each client. However, as soon as we receive the client's parameters, the
client's remote timeout will override this parameter.
-rto, --rem_timeoutTime
Set remote timeout to Time.
-un, --unify_nodes
Unify the nodes. Describe them in terms of local and remote rather than send and receive.
-uu, --unify_units
Unify the units that results are shown in. Uses the lowest common denominator. Helpful for
scripts.
-ub, --use_bits_per_sec
Use bits/sec rather than bytes/sec when displaying networking speed.
-cm, --use_cmOnOff
Use the RDMA Connection Manager (CM) if OnOff is non-zero. It is necessary to use the CM for
iWARP devices. The default is to establish the connection without using the CM. This only works
for the tests that use the RC transport.
-cm1 Use RDMA Connection Manager.
-v, --verbose
Provide more detailed output. Turns on -vc, -vs, -vt and -vu.
-vc, --verbose_conf
Provide information on configuration.
-vs, --verbose_stat
Provide information on statistics.
-vt, --verbose_time
Provide information on timing.
-vu, --verbose_used
Provide information on parameters used.
-vv, --verbose_more
Provide even more detailed output. Turns on -vvc, -vvs, -vvt and -vvu.
-vvc, --verbose_more_conf
Provide more information on configuration.
-vvs, --verbose_more_stat
Provide more information on statistics.
-vvt, --verbose_more_time
Provide more information on timing.
-vvu, --verbose_more_used
Provide more information on parameters used.
-V, --version
The current version of qperf is printed.
-ws, --wait_serverTime
If the server is not ready, continue to try connecting for Time seconds before giving up. The
default is 5 seconds.
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