TPUT(1)TPUT(1)

NAME

tput – measure read throughput

SYNOPSIS

tput [ -pw ] [ -b buflen ]

DESCRIPTION

Tput continuously reads standard input writing throughput statistics to standard error. The throughput value is calculated and written once per second and automatically scaled to kilo-, mega- or gigabytes.

By default, tput will print the average throughput since the stream has started. When passed the -w flag, tput will print the throughput over the last 1 second window.

When the -p flag is specified, tput will write the data read to standard output (the default is to discard the data).

A read blocksize (default is the iounit(2) of file-descriptor) in bytes can be given with the -b buflen option.

EXAMPLE

tput </dev/zero

SOURCE

/sys/src/cmd/tput.c

SEE

iostats(4), iounit(2)

DIAGNOSTICS

Tput sets error status on read error.

HISTORY

Tput first appeared in 9front (May, 2011).