The sniplet below resulted not to be sorted correctly.
for i in $(seq 1 50); do ls -R /usr &>/dev/null 2>&1 & done
sleep 1; ps -e --sort=pcpu -o pcpu,comm=; pkill ls
Issue is present since older versions of procps (3.2.7/3.2.8).
Reference: http://www.freelists.org/post/procps/top-incorrect-sort,2
Reported-by: Jaromir Capik <jcapik@redhat.com>
Backported-by: Sami Kerola <kerolasa@iki.fi>
cdeb9a071a