From @hoelzro

See the attached file.

When I uncomment the line that defines a * prefix operator (ala pointer dereferencing in C), the runtime for the script is five times as long.

From @hoelzro

test.pl

From @dwarring

Also seeing similar in latest Rakudo​:

david@​X346​:~$ perl6 -v
This is Rakudo version 2017.03-206-g2ddfa26 built on MoarVM version 2017.03-115-ge8231a3
implementing Perl 6.c.
david@​X346​:~$ time perl6 -e'sub prefix​:<n>($) {42};'

real 0m1.336s
user 0m1.244s
sys 0m0.092s

Versus a simple sub​:

david@​X346​:~$ time perl6 -e'sub n {42}'

real 0m0.331s
user 0m0.268s
sys 0m0.060s

On Thu, 23 Jul 2015 21​:01​:55 -0700, rob@​hoelz.ro wrote​:

See the attached file.

When I uncomment the line that defines a * prefix operator (ala
pointer dereferencing in C), the runtime for the script is five times
as long.

The RT System itself - Status changed from 'new' to 'open'