/usr/share/octave/ is in octave-benchmark 1.1.1-4.
This file is owned by root:root, with mode 0o755.
..
/usr/share/octave/packages/
/usr/share/octave/packages/benchmark-1.1.1/
/usr/share/octave/packages/benchmark-1.1.1/benchmark_dtmm.m
/usr/share/octave/packages/benchmark-1.1.1/benchmark_index.m
/usr/share/octave/packages/benchmark-1.1.1/benchmark_intmath.m
/usr/share/octave/packages/benchmark-1.1.1/benchmark_permute.m
/usr/share/octave/packages/benchmark-1.1.1/benchmark_stmm.m
/usr/share/octave/packages/benchmark-1.1.1/benchutil_average.m
/usr/share/octave/packages/benchmark-1.1.1/benchutil_default_arg.m
/usr/share/octave/packages/benchmark-1.1.1/benchutil_initialize.m
/usr/share/octave/packages/benchmark-1.1.1/benchutil_is_octave.m
/usr/share/octave/packages/benchmark-1.1.1/benchutil_parse_desc.m
/usr/share/octave/packages/benchmark-1.1.1/benchutil_set_result.m
/usr/share/octave/packages/benchmark-1.1.1/benchutil_verbose.m
/usr/share/octave/packages/benchmark-1.1.1/doc-cache
/usr/share/octave/packages/benchmark-1.1.1/packinfo/
/usr/share/octave/packages/benchmark-1.1.1/packinfo/.autoload
/usr/share/octave/packages/benchmark-1.1.1/packinfo/DESCRIPTION
/usr/share/octave/packages/benchmark-1.1.1/packinfo/INDEX