iperf(1) on Linux
The text c13f0f22b0a4, as Debian 13 (Trixie) shipped it.
perform network traffic tests using network sockets. Metrics include throughput and latency or link capacity and responsiveness.
Flags it lists
-
--NUM_REPORT_STRUCTS -
--bandwidth -
--bind -
--bounceback -
--bounceback-hold -
--bounceback-no-quickack -
--bounceback-period -
--bounceback-reply -
--bounceback-request -
--bounceback-txdelay -
--burst-period -
--burst-size -
--compatibility -
--connect-only -
--connect-retry-time -
--connect-retry-timer -
--daemon -
--dscp -
--dualtest -
--enhanced -
--fileinput -
--format -
--fq-rate -
--fq-rate-step -
--fq-rate-step-interval -
--full-duplex -
--help -
--hide-ips -
--ignore-shutdown -
--incr-dstip -
--incr-dstport -
--incr-srcip -
--incr-srcport -
--ipg -
--ipv6_domain -
--isochronous -
--jitter-histograms -
--l2checks -
--len -
--linux-congestion -
--listenport -
--local-only -
--mss -
--near-congestion -
--no-connect-sync -
--no-udp-fin -
--nodelay -
--num -
--output -
--parallel -
--peerdetect -
--permit-key -
--permit-key-timeout -
--port -
--print_mss -
--realtime -
--remove -
--reportexclude -
--reportstyle -
--reverse -
--server -
--single_udp -
--singleclient -
--skip-rx-copy -
--ssm-host -
--stdin -
--sum-dstip -
--sum-only -
--sync-transfer-id -
--tap-dev -
--tcp-cca -
--tcp-congestion -
--tcp-quickack -
--tcp-rx-window-clamp -
--tcp-tx-delay -
--tcp-write-prefetch -
--tcp-write-times -
--test-exchange-timeout -
--time -
--tos -
--tos-override -
--tradeoff -
--trip-times -
--ttl -
--txdelay-time -
--txstart-time -
--udp -
--udp-l4s -
--utc -
--version -
--window -
--working-load -
--working-load-cca -
-1 -
-B -
-C -
-D -
-F -
-H -
-I -
-L -
-M -
-N -
-P -
-R -
-S -
-T -
-U -
-V -
-X -
-Z -
-b -
-d -
-e -
-f -
-h -
-l -
-m -
-n -
-o -
-p -
-r -
-s -
-t -
-u -
-v -
-w -
-x -
-y -
-z