# softlimit -m 6000000 perl -le 'use version; print $version::VERSION'
0.96
# softlimit -m 5000000 perl -le 'use version; print $version::VERSION'
perl: warning: Setting locale failed.
perl: warning: Please check that your locale settings:
        LANGUAGE = (unset),
        LC_ALL = (unset),
        LC_NUMERIC = "C",
        LANG = "en_US.UTF-8"
    are supported and installed on your system.
perl: warning: Falling back to the standard locale ("C").
0.96
# softlimit -m 3000000 perl -le 'use version; print $version::VERSION'
perl: error while loading shared libraries: libc.so.6: failed to map segment from shared object: Cannot allocate memory