/usr/lib/mysql-testsuite/suite/perfschema_stress/ is in mysql-testsuite-5.6 5.6.16-1~exp1.
This file is owned by root:root, with mode 0o755.
..
/usr/lib/mysql-testsuite/suite/perfschema_stress/README
/usr/lib/mysql-testsuite/suite/perfschema_stress/include/
/usr/lib/mysql-testsuite/suite/perfschema_stress/include/settings.inc
/usr/lib/mysql-testsuite/suite/perfschema_stress/r/
/usr/lib/mysql-testsuite/suite/perfschema_stress/r/modify.result
/usr/lib/mysql-testsuite/suite/perfschema_stress/r/read.result
/usr/lib/mysql-testsuite/suite/perfschema_stress/r/work.result
/usr/lib/mysql-testsuite/suite/perfschema_stress/stress_init.txt
/usr/lib/mysql-testsuite/suite/perfschema_stress/stress_tests.txt
/usr/lib/mysql-testsuite/suite/perfschema_stress/t/
/usr/lib/mysql-testsuite/suite/perfschema_stress/t/modify.test
/usr/lib/mysql-testsuite/suite/perfschema_stress/t/read.test
/usr/lib/mysql-testsuite/suite/perfschema_stress/t/setup.test
/usr/lib/mysql-testsuite/suite/perfschema_stress/t/work.test