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

    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)
...
           Rate   cc   ds
    cc 101653/s   -- -58%
    ds 243115/s 139%   --

    C:\>perl -v
    This is perl, v5.6.0 built for MSWin32-x86-multi-thread
...

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

    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)
...
           Rate   cc   ds
    cc 116045/s   -- -54%
    ds 250170/s 116%   --

    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)
...
           Rate  ds  cc
    ds 292251/s  -- -8%
    cc 319288/s  9%  --