NETTEST(8) NETTEST(8)
NAME
nettest - test network performance
SYNOPSIS
nettest -l [ -t [ -e encalg -h hashalg ]] [ -s sleepms ][ -n
nblocks ]
nettest [ -t [ -e encalg -h hashalg ]] [ -a addr ][ -s
sleepms ]
nettest [ -t [ -e encalg -h hashalg ]] -r raddr -n nblocks
DESCRIPTION
Nettest tests goodput of reliable, in-order transports at
full speed, and with receiver throttling. Both sender and
receiver do i/o in 8 KB chunks. Goodput in MB/s and if
throttled, the theoretical maximum goodput in MB/s are
reported.
As a client the options are
-r raddr remote address addr
-n nblocks send nblocks 8-KiB blocks
Server options are
-a addr listen on network address addr
-s sleepms sleep sleepms between 8KiB reads
In loopback mode the options are
-l specify loopback mode
-s sleepms sleep sleepms between 8KiB reads
-n nblocks send nblocks 8-KiB blocks
In all modes, TLS may be pushed onto the network file
descriptor. The options are
-t Enable TLS.
-h hashalg
Set the hash algorithm. The default is clear.
-e encalg
Set the encryption algorithm. The default is clear.
EXAMPLE
To test a reader limited to 8MB/s
nettest -l -n 5000 -s 1
To do the same test using two independent IP stacks
nettest -s 1 -a /net.a/tcp!* &
nettest -n 5000 -r /net.b/tcp!mymachine-neta
To test with TLS using AES and SHA1 over loopback networking
nettest -te aes_128_cbc -h sha1 -ln5000
Page 1 Plan 9 (printed 12/30/24)
NETTEST(8) NETTEST(8)
SEE ALSO
ping(8)
Page 2 Plan 9 (printed 12/30/24)