Rate use_splice  use_slice
use_splice 33810/s         --       -39%
use_slice  55351/s        64%         --
1..60

TESTING Perl_slice with array (abcdefghijk)
ok 1 - Testing: [:3] expecting (abc)
ok 2 - Testing: [:-3] expecting (abcdefgh)
ok 3 - Testing: [-3:] expecting (ijk)
ok 4 - Testing: [3:] expecting (defghijk)
ok 5 - Testing: [10:] expecting (k)
ok 6 - Testing: [:] expecting (abcdefghijk)
ok 7 - Testing: [:0] expecting ()
ok 8 - Testing: [-3:-1] expecting (ij)
ok 9 - Testing: [-3:-3] expecting ()
ok 10 - Testing: [-3:0] expecting ()
ok 11 - Testing: [-3:2] expecting ()
ok 12 - Testing: [-11:-1] expecting (abcdefghij)
ok 13 - Testing: [-11:-0] expecting ()
ok 14 - Testing: [-12:-1] expecting (abcdefghij)
ok 15 - Testing: [-12:1] expecting (a)
ok 16 - Testing: [-2:10] expecting (j)
ok 17 - Testing: [3:-1] expecting (defghij)
ok 18 - Testing: [7:-5] expecting ()
ok 19 - Testing: [3:4] expecting (d)
ok 20 - Testing: [0:12] expecting (abcdefghijk)

TESTING Perl_splice with array (abcdefghijk)
ok 21 - Testing: [:3] expecting (abc)
ok 22 - Testing: [:-3] expecting (abcdefgh)
ok 23 - Testing: [-3:] expecting (ijk)
ok 24 - Testing: [3:] expecting (defghijk)
ok 25 - Testing: [10:] expecting (k)
ok 26 - Testing: [:] expecting (abcdefghijk)
ok 27 - Testing: [:0] expecting ()
ok 28 - Testing: [-3:-1] expecting (ij)
ok 29 - Testing: [-3:-3] expecting ()
ok 30 - Testing: [-3:0] expecting ()
ok 31 - Testing: [-3:2] expecting ()
ok 32 - Testing: [-11:-1] expecting (abcdefghij)
ok 33 - Testing: [-11:-0] expecting ()
ok 34 - Testing: [-12:-1] expecting (abcdefghij)
ok 35 - Testing: [-12:1] expecting (a)
ok 36 - Testing: [-2:10] expecting (j)
ok 37 - Testing: [3:-1] expecting (defghij)
ok 38 - Testing: [7:-5] expecting ()
ok 39 - Testing: [3:4] expecting (d)
ok 40 - Testing: [0:12] expecting (abcdefghijk)

TESTING Python with array (abcdefghijk)
ok 41 - Testing: [:3] expecting (abc)
ok 42 - Testing: [:-3] expecting (abcdefgh)
ok 43 - Testing: [-3:] expecting (ijk)
ok 44 - Testing: [3:] expecting (defghijk)
ok 45 - Testing: [10:] expecting (k)
ok 46 - Testing: [:] expecting (abcdefghijk)
ok 47 - Testing: [:0] expecting ()
ok 48 - Testing: [-3:-1] expecting (ij)
ok 49 - Testing: [-3:-3] expecting ()
ok 50 - Testing: [-3:0] expecting ()
ok 51 - Testing: [-3:2] expecting ()
ok 52 - Testing: [-11:-1] expecting (abcdefghij)
ok 53 - Testing: [-11:-0] expecting ()
ok 54 - Testing: [-12:-1] expecting (abcdefghij)
ok 55 - Testing: [-12:1] expecting (a)
ok 56 - Testing: [-2:10] expecting (j)
ok 57 - Testing: [3:-1] expecting (defghij)
ok 58 - Testing: [7:-5] expecting ()
ok 59 - Testing: [3:4] expecting (d)
ok 60 - Testing: [0:12] expecting (abcdefghijk)