NAME

tcprtt — measure TCP handshake RTT using the stats(3) framework

SYNOPSIS

DESCRIPTION

The tcprtt utility reliably measures the TCP handshake round trip time using the stats(3) statistics framework.

Both IPv4 and IPv6 are supported. If the host argument is a hostname containing several A and AAAA records, one line per record will be printed.

The options are as follows:

-f

Stop after the first address of each family

For each address measured, a line is printed with 3 columns: address family (4 or 6), the numerical address and the measured RTT in milliseconds.

When an error occurs for one of the measurement, the -errno(2) is printed in place of the RTT.

If at least one entry returns an error, the command exits with the value of the last encountered error.

SEE ALSO

stats(3)