bench on OpenSolaris nv147

(uname -a && perl -v && time perl ./test.pl) |& tee test.log
SunOS bbs2 5.11 snv_134 i86pc i386 i86pc

This is perl, v5.10.1 (csw-5.10.1*) built for i86pc-solaris-thread-multi

Copyright 1987-2009, Larry Wall

Perl may be copied only under the terms of either the Artistic License or the
GNU General Public License, which may be found in the Perl 5 source kit.

Complete documentation for Perl, including FAQ lists, should be found on
this system using "man perl" or "perldoc perl".  If you have access to the
Internet, point your browser at http://www.perl.org/, the Perl Home Page.

custom implementation
                1.56899809837341
List::MoreUtils::part
                0.990465879440308

real    0m15.658s
user    0m14.798s
sys     0m0.731s