QPERF(1) QPERF(1) (NAME) qperf - RDMA IP (SYNOPSIS) qperf qperf SERVERNODE [OPTIONS] TESTS (DESCRIPTION) qperf . TCP/IP RDMA . qperf . qperf . qperf . : . TESTS . . --help qperf . --help : qperf --help examples qperf qperf --help opts qperf --help options qperf --help tests qperf --help TESTNAME TESTNAME (EXAMPLES) qperf myserver . qperf myserver . TCP: qperf myserver tcp_bw tcp_lat SDP : qperf myserver -t 10 sdp_bw UDP : qperf myserver udp_lat quit RDMA UD: qperf myserver ud_lat ud_bw RDMA UC: qperf myserver rc_bi_bw TCP 1 64K: qperf myserver -oo msg_size:1:64K:*2 -vu tcp_lat (OPTIONS) -ar, --access_recv OnOff OnOff . . OnOff 0 . . -ar1 . -ap, --alt_port Port (alternate path port). (automatic path failover) . -lap, --loc_alt_port Port . . -rap, --rem_alt_port Port . . -ca, --cpu_affinity PN (cpu affinity) PN. 0 . PN "any" . -lca, --loc_cpu_affinity PN PN. -rca, --rem_cpu_affinity PN PN. -f, --flip OnOff . -f1 . -h, --help Topic Topic. qperf --help . -H, --host Host qperf Host. . -i, --id Device:Port Device Port RDMA. -li, --loc_id Device:Port Device Port RDMA. -ri, --rem_id Device:Port Device Port RDMA. -lp, --listen_port Port ListenPort. . 19765 . -oo, --loop Var:Init:Last:Incr . Var Init Last Incr . --verbose_used (-vu) . -m, --msg_size Size Size. . kib K mib M gib G kb k mb m gb g . -mt, --mtu_size Size MTU. RDMA UC/RC . --msg_size . -n, --no_msgs N . -cp, --cq_poll OnOff (polling). RDMA (completion queues) (poll) . OnOff 0 . -lcp, --loc_cq_poll OnOff (polling) . -rcp, --rem_cq_poll OnOff (polling) . -cp1 (polling). -lcp1 (polling) . -rcp1 (polling) . -ip, --ip_port Port Port . --listen_port . TCP/UDP/SDP/RDS/SCTP . -e, --precision Digits (significant digits) . -nr, --rd_atomic Max (in-flight) RDMA Max. RDMA Read Atomic . -lnr, --loc_rd_atomic Max / . -rnr, --rem_rd_atomic Max / . -sl, --service_level SL RDMA SL. RDMA . 0 15 . 0 . -lsl, --loc_service_level SL ..TP -rsl, --rem_service_level SL (remote service level). -sb, --sock_buf_size Size . . -lsb, --loc_sock_buf_size Size . -rsb, --rem_sock_buf_size Size . -sp, --src_path_bits N (source path bits). LMC LID LMC N . -lsp, --loc_src_path_bits N . -rsp, --rem_src_path_bits N . -sr, --static_rate Rate (static rate) InfiniBand. Rate : 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 InfiniBand . -rsr, --rem_static_rate InfiniBand . -t, --time Time Time. m h d . -to, --timeout Time (timeout) Time. . . -lto, --loc_timeout Time Time. . . -rto, --rem_timeout Time Time. -un, --unify_nodes . (local) (remote) (send) (receive). -uu, --unify_units . . . -ub, --use_bits_per_sec bits/sec bytes/sec . -cm, --use_cm OnOff RDMA ( CM) OnOff . CM iWARP . CM . RC . -cm1 RDMA Connection Manager. -v, --verbose . -vc -vs -vt -vu . -vc, --verbose_conf . -vs, --verbose_stat . -vt, --verbose_time . -vu, --verbose_used . -vv, --verbose_more . -vvc -vvs -vvt -vvu . -vvc, --verbose_more_conf . -vvs, --verbose_more_stat . -vvt, --verbose_more_time . -vvu, --verbose_more_used . -V, --version qperf . -ws, --wait_server Time Time . ..SH " (TESTS)" conf quit rds_bw RDS rds_lat RDS sctp_bw SCTP sctp_lat SCTP sdp_bw SDP sdp_lat SDP tcp_bw TCP tcp_lat TCP udp_bw UDP udp_lat UDP rc_bi_bw RC rc_bw RC rc_lat RC uc_bi_bw UC uc_bw UC uc_lat UC ud_bi_bw UD ud_bw UD ud_lat UD xrc_bi_bw XRC xrc_bw XRC xrc_lat XRC rc_rdma_read_bw RC RDMA rc_rdma_read_lat RC RDMA rc_rdma_write_bw RC RDMA rc_rdma_write_lat RC RDMA rc_rdma_write_poll_lat (polling) RC RDMA uc_rdma_write_bw UC RDMA uc_rdma_write_lat UC RDMA uc_rdma_write_poll_lat (polling) UC RDMA rc_compare_swap_mr (compare and swap) RC rc_fetch_add_mr (fetch and add) RC ver_rc_compare_swap (compare and swap) RC ver_rc_fetch_add (fetch and add) RC.SH " (AUTHORS)" Johann George. (BUGS) qperf RDMA RDMA . qperf XRC XRC . -f . qperf 2026 QPERF(1)