Provided by: systemtap-doc_2.3-1ubuntu1.4_all 

NAME
function::proc_mem_size_pid - Total program virtual memory size in pages
SYNOPSIS
proc_mem_size_pid:long(pid:long)
ARGUMENTS
pid
The pid of process to examine
DESCRIPTION
Returns the total virtual memory size in pages of the given process, or zero when that process doesn't
exist or the number of pages couldn't be retrieved.
SystemTap Tapset Reference March 2016 FUNCTION::PROC_MEM_S(3stap)