Provided by: systemtap-doc_3.1-3ubuntu0.1_all 

NAME
probe::udp.sendmsg.return - Fires whenever an attempt to send a UDP message is completed
SYNOPSIS
udp.sendmsg.return
VALUES
name
The name of this probe
size
Number of bytes sent by the process
CONTEXT
The process which sent a UDP message
SEE ALSO
tapset::udp(3stap)
SystemTap Tapset Reference March 2016 PROBE::UDP.SENDMSG(3stap)