选第一个星星最多的这个，也是官方推荐版本，其他版本没有试过不清楚能不能用。 双击下载，下载安装比较慢，需等一会儿。没装好之前点击映像，里面的项目占用的空间会逐渐变大，装好大概是126M
Usage: iperf [-s|-c host] [options]
iperf [-h|--help] [-v|--version]
Server or Client:
-p, --port # server port to listen on/connect to
-f, --format [kmgKMG] format to report: Kbits, Mbits, KBytes, MBytes
-i, --interval # seconds between periodic bandwidth reports
-F, --file name xmit/recv the specified file
-B, --bind bind to a specific interface
-V, --verbose more detailed output
-J, --json output in JSON format
--logfile f send output to a log file
-d, --debug emit debugging output
-v, --version show version information and quit
-h, --help show this message and quit
Server specific:
-s, --server run in server mode
-D, --daemon run the server as a daemon
-I, --pidfile file write PID file
-1, --one-off handle one client connection then exit
Client specific:
-c, --client run in client mode, connecting to
-u, --udp use UDP rather than TCP
-b, --bandwidth #[KMG][/#] target bandwidth in bits/sec (0 for unlimited)
(default 1 Mbit/sec for UDP, unlimited for TCP)
(optional slash and packet count for burst mode)
-t, --time # time in seconds to transmit for (default 10 secs)
-n, --bytes #[KMG] number of bytes to transmit (instead of -t)
-k, --blockcount #[KMG] number of blocks (packets) to transmit (instead of -t or -n)
-l, --len #[KMG] length of buffer to read or write
(default 128 KB for TCP, 8 KB for UDP)
--cport bind to a specific client port (TCP and UDP, default: ephemeral port)
-P, --parallel # number of parallel client streams to run
-R, --reverse run in reverse mode (server sends, client receives)
-w, --window #[KMG] set window size / socket buffer size
-M, --set-mss # set TCP/SCTP maximum segment size (MTU - 40 bytes)
-N, --no-delay set TCP/SCTP no delay, disabling Nagle's Algorithm
-4, --version4 only use IPv4
-6, --version6 only use IPv6
-S, --tos N set the IP 'type of service'
-Z, --zerocopy use a 'zero copy' method of sending data
-O, --omit N omit the first n seconds
-T, --title str prefix every output line with this string
--get-server-output get results from server
--udp-counters-64bit use 64-bit counters in UDP test packets
[KMG] indicates options that support a K/M/G suffix for kilo-, mega-, or giga-
微软（Microsoft）正版苹果办公软件mac office2021终身office2019永久激活outlook Office2019小型企业版 for Mac
微软（Microsoft）正版苹果办公软件mac office2021终身office2019永久激活outlook Office2019小型企业版 for Mac
微软（Microsoft）office365家庭版/个人版密钥 激活码 正版软件 续费/新订 支持mac Microsoft365 个人版 电子下载版
微软（Microsoft）office365家庭版/个人版密钥 激活码 正版软件 续费/新订 支持mac Microsoft365 个人版 电子下载版
，难道
)，可以得到以下提示内容，我又懒又不愿意嫖其他网友的劳动成果，就不给大伙翻译了哦
