pub fn parse_stat_starttime(content: &str) -> Option<u64>Expand description
Parse the process start time (starttime, field 22) from the contents of
a /proc/<pid>/stat file.
starttime is a monotonically increasing value (in clock ticks since boot)
that uniquely identifies a process incarnation. It is the freshness token
the session-sweep machinery compares against before killing by numeric sid,
so a recycled pid that belongs to an unrelated new session is never hit
(finding F8 / A4-5 class).