CMTIME(1) librdmacm CMTIME(1) (NAME) cmtime - RDMA CM (SYNOPSIS) cmtime -C controller_address (-B bind_interface | -b bind_address) [-L] [-c connections_per_pair] [-P num_peers] [-p controller_port] [-q base_qpn] [-n num_threads] [-m mimic_qp_delay_us] [-r retries] [-t timeout_ms] [-S] (DESCRIPTION) <<>> RDMA CM . (-L) . -c . . . -- (out-of- band) <<>> . <<>> : create ID bind address resolve address resolve route create QP modify QP to INIT modify QP to RTR modify QP to RTS CM connect client establish disconnect destroy QP destroy ID. (asynchronous) . <> . <> . . min max . <> <> . . (serial) total sum . total sum . avg/iter (total) . . 0 . (instance) -- / (-P > 2) . (OPTIONS) -C controller_address IP . . (out-of-band) . ( ) . -B bind_interface RDMA bind . -B -b . -b bind_address bind . -B -b . -L RDMA CM () (). ( /) -c connections_per_pair - . ( 100) -P num_peers ( ) . ( 2) -p controller_port () . -q base_qpn QP QP. base_qpn base_qpn . ( 1000) -n num_threads (threads) . ( 1) -m mimic_qp_delay_us (modify) QP sleep <<>> . CM . -r retries (resolve) . ( 2) -S . RDMA TCP . (blocking) . (-P 2) . -t timeout_ms (ms) . ( 2000 - ) (EXAMPLES) : server$ cmtime -B enp1s0f0np0 -C 192.0.2.1 -L client$ cmtime -B enp1s0f0np0 -C 192.0.2.1 : client1$ cmtime -B enp1s0f0np0 -P 5 -C 192.0.2.1 -c 1000 client2$ cmtime -B enp1s0f0np0 -P 5 -C 192.0.2.1 -c 1000 server1$ cmtime -B enp1s0f0np0 -P 5 -C 192.0.2.1 -c 1000 -L server2$ cmtime -B enp1s0f0np0 -P 5 -C 192.0.2.1 -c 1000 -L server3$ cmtime -B enp1s0f0np0 -P 5 -C 192.0.2.1 -c 1000 -L (NOTES) RDMA (userspace) . README libibverbs . (SEE ALSO) rdma_cm(7) librdmacm 2025-09-03 CMTIME(1)