cmpthese(-3, {
      cc => sub { 'asdfasdfXasdfasdfXsdfasdfXasdfasdf111XYZ' =~ /(?:[^X]*X)+?YZ/  },
      ds => sub { 'asdfasdfXasdfasdfXsdfasdfXasdfasdf111XYZ' =~ /.*?XYZ/  },
    });

##</code><code>##

    Benchmark: running cc, ds, each for at least 3 CPU seconds...
            cc:  4 wallclock secs ( 3.12 usr +  0.00 sys =  3.12 CPU) @ 101652.97/s (n=316649)
            ds:  4 wallclock secs ( 3.12 usr +  0.00 sys =  3.12 CPU) @ 243115.24/s (n=759492)
           Rate   cc   ds
    cc 101653/s   -- -58%
    ds 243115/s 139%   --

##</code><code>##

    C:\>perl -v
    This is perl, v5.6.0 built for MSWin32-x86-multi-thread
    (with 1 registered patch, see perl -V for more detail)

    Copyright 1987-2000, Larry Wall

    Binary build 620 provided by ActiveState Tool Corp.         http://www.ActiveState.com
    Built 18:31:05 Oct 31 2000

##</code><code>##

    Benchmark: running cc, ds, each for at least 3 CPU seconds...
            cc:  3 wallclock secs ( 3.19 usr +  0.01 sys =  3.20 CPU) @ 116044.62/s (n=371923)
            ds:  3 wallclock secs ( 3.13 usr +  0.00 sys =  3.13 CPU) @ 250170.39/s (n=784034)
           Rate   cc   ds
    cc 116045/s   -- -54%
    ds 250170/s 116%   --

##</code><code>##

    Benchmark: running cc, ds, each for at least 3 CPU seconds...
            cc:  2 wallclock secs ( 3.08 usr +  0.01 sys =  3.09 CPU) @ 319288.07/s (n=987558)
            ds:  3 wallclock secs ( 3.19 usr + -0.01 sys =  3.18 CPU) @ 292251.18/s (n=930820)
           Rate  ds  cc
    ds 292251/s  -- -8%
    cc 319288/s  9%  --