This file is indexed.

/usr/lib/linux-tools/3.19.0-20-lowlatency/perf is in linux-tools-3.19.0-20-lowlatency 3.19.0-20.20~14.04.1.

This file is owned by root:root, with mode 0o777.

It is a symlink to /usr/lib/linux-tools/3.19.0-20-lowlatency/../../linux-lts-vivid-tools-3.19.0-20/perf