.TH TPUT 1
.SH NAME
tput \- measure read throughput
.SH SYNOPSIS
.B tput
[
.B -b
.I buflen
] [
.B -p
]
.SH DESCRIPTION
.I 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.
.PP
When the
.B -p
flag is specified,
.I tput
will write the data read to standard output (the default is to
discard the data).
.PP
A read blocksize (default is 8192) in bytes can be given with the
.B -b
.I buflen
option.
.SH EXAMPLE
.EX
tput </dev/zero
.EE
.SH SOURCE
.B /sys/src/cmd/tput.c
.SH SEE ALSO
.IR iostats (4)
.SH DIAGNOSTICS
.I Tput
sets error status on read error.
.SH HISTORY
.I Tput
first appeared in 9front (May, 2011).