Provided by: systemtap-doc_4.2-3ubuntu0.1_all 

NAME
function::gettimeofday_us - Number of microseconds since UNIX epoch
SYNOPSIS
gettimeofday_us:long()
ARGUMENTS
None
DESCRIPTION
This function returns the number of microseconds since the UNIX epoch.
SEE ALSO
tapset::timestamp_gtod(3stap) SystemTap Tapset Reference November 2019 FUNCTION::GETTIMEOFD(3stap)