Iperf uygulaması ile iki bilgisayar arasındaki ağ hızını test edebilirsiniz. Uygulama bilgisaayrın birinde sunucu diğerinde istemci olarak çalışmakta.

En basit kullanımı ile:

Sunucu görevini yerine getirecek bilgisayarda komut isteminde aşağıdaki gibi çalıştırın:

C:\>iperf -s
————————————————————
Server listening on TCP port 5001
TCP window size: 8.00 KByte (default)
————————————————————

İstemci olan bilgisayarınızda ise aşağıdaki komutu çalıştırın ve sonuç gelsin:

C:\>iperf -c 192.168.0.220
————————————————————
Client connecting to 192.168.0.220, TCP port 5001
TCP window size: 8.00 KByte (default)
————————————————————
[160] local 192.168.0.152 port 56773 connected with 192.168.0.220 port 5001
[ ID] Interval Transfer Bandwidth
[160] 0.0-10.0 sec 176 MBytes 147 Mbits/sec

192.168.0.220 nolu ip iperf uygulamasının sunucu olarak çalıştığı bilgisayarın ip si dir.

Test sırasında sunucu tarafında da sonucu göstermektedir.

C:\>iperf -s
————————————————————
Server listening on TCP port 5001
TCP window size: 8.00 KByte (default)
————————————————————
[1872] local 192.168.0.220 port 5001 connected with 192.168.0.152 port 56773
[ ID] Interval Transfer Bandwidth
[1872] 0.0-10.0 sec 176 MBytes 148 Mbits/sec

Daha geniş test seneçeneklerine –help girdisini kullanarak bakılabilir.

C:\>iperf –help
Usage: iperf [-s|-c host] [options]
iperf [-h|–help] [-v|–version]

Client/Server:
-f, –format [kmKM] format to report: Kbits, Mbits, KBytes, MBytes
-i, –interval # seconds between periodic bandwidth reports
-l, –len #[KM] length of buffer to read or write (default 8 KB)
-m, –print_mss print TCP maximum segment size (MTU – TCP/IP header)
-o, –output <filename> output the report or error message to this specified file
-p, –port # server port to listen on/connect to
-u, –udp use UDP rather than TCP
-w, –window #[KM] TCP window size (socket buffer size)
-B, –bind <host> bind to <host>, an interface or multicast address
-C, –compatibility for use with older versions does not sent extra msgs
-M, –mss # set TCP maximum segment size (MTU – 40 bytes)
-N, –nodelay set TCP no delay, disabling Nagle’s Algorithm
-V, –IPv6Version Set the domain to IPv6

Server specific:
-s, –server run in server mode
-D, –daemon run the server as a daemon
-R, –remove remove service in win32

Client specific:
-b, –bandwidth #[KM] for UDP, bandwidth to send at in bits/sec
(default 1 Mbit/sec, implies -u)
-c, –client <host> run in client mode, connecting to <host>
-d, –dualtest Do a bidirectional test simultaneously
-n, –num #[KM] number of bytes to transmit (instead of -t)
-r, –tradeoff Do a bidirectional test individually
-t, –time # time in seconds to transmit for (default 10 secs)
-F, –fileinput <name> input the data to be transmitted from a file
-I, –stdin input the data to be transmitted from stdin
-L, –listenport # port to recieve bidirectional tests back on
-P, –parallel # number of parallel client threads to run
-T, –ttl # time-to-live, for multicast (default 1)

Miscellaneous:
-h, –help print this message and quit
-v, –version print version information and quit

[KM] Indicates options that support a K or M suffix for kilo- or mega-

The TCP window size option can be set by the environment variable
TCP_WINDOW_SIZE. Most other options can be set by an environment variable
IPERF_<long option name>, such as IPERF_BANDWIDTH.

Report bugs to <dast@nlanr.net>

C:\>

Uygulamanın internet sitesi: http://sourceforge.net/projects/iperf/