bench.raku

use nqp;

sub with-current-disp() {
    my class C1 {
        method m() { 'c1' }
    }
    my class C2 is C1 {
        method m() { 'c2' ~ callsame() }
    }
    my class C3 is C2 {
        method m() { 'c3' ~ callsame() }
    }
    my class C4 is C3 {
        method m() { 'c4' ~ callsame() }
    }
    for ^1_000_000 {
        C4.m
    }
    say "Current: " ~ now - ENTER now;
}

sub with-new-disp() {
    my class C1 {
        method m() { 'c1' }
    }
    my class C2 is C1 {
        method m() { 'c2' ~ new-disp-callsame() }
    }
    my class C3 is C2 {
        method m() { 'c3' ~ new-disp-callsame() }
    }
    my class C4 is C3 {
        method m() { 'c4' ~ new-disp-callsame() }
    }
    for ^1_000_000 {
        nqp::dispatch('raku-meth-call', C4, 'm', C4);
    }
    say "New: " ~ now - ENTER now;
}

with-current-disp();
with-new-disp();

results

Current: 42.794793
New: 6.3299149