Benchmark: timing 5 iterations of Atest, Btest, Ctest, Dtest...
     Atest:  4 wallclock secs ( 4.08 usr +  0.23 sys =  4.31 CPU) @  1.16/s (n=5)
     Btest:  5 wallclock secs ( 4.18 usr +  0.00 sys =  4.18 CPU) @  1.20/s (n=5)
     Ctest:  5 wallclock secs ( 4.17 usr +  0.00 sys =  4.17 CPU) @  1.20/s (n=5)
     Dtest:  5 wallclock secs ( 4.21 usr +  0.00 sys =  4.21 CPU) @  1.19/s (n=5)
        Rate Atest Dtest Btest Ctest
Atest 1.16/s    --   -2%   -3%   -3%
Dtest 1.19/s    2%    --   -1%   -1%
Btest 1.20/s    3%    1%    --   -0%
Ctest 1.20/s    3%    1%    0%    --

##</code><code>##

laptop:~> monk.pl
Benchmark: timing 20 iterations of Atest, Btest, Ctest, Dtest...
     Atest: 17 wallclock secs (16.61 usr +  0.25 sys = 16.86 CPU) @  1.19/s (n=20)
     Btest: 16 wallclock secs (16.73 usr +  0.00 sys = 16.73 CPU) @  1.20/s (n=20)
     Ctest: 17 wallclock secs (16.72 usr +  0.00 sys = 16.72 CPU) @  1.20/s (n=20)
     Dtest: 17 wallclock secs (16.71 usr +  0.02 sys = 16.73 CPU) @  1.20/s (n=20)
        Rate Atest Btest Dtest Ctest
Atest 1.19/s    --   -1%   -1%   -1%
Btest 1.20/s    1%    --   -0%   -0%
Dtest 1.20/s    1%    0%    --   -0%
Ctest 1.20/s    1%    0%    0%    --

##</code><code>##

laptop:~> uname -a
Linux laptop 2.4.25-1-686 #1 Thu Apr 15 15:21:42 CEST 2004 i686 unknown
laptop:~> perl -V
Summary of my perl5 (revision 5.0 version 6 subversion 1) configuration:
  Platform:
    osname=linux, osvers=2.6.3-deb2-skas3, archname=i386-linux
    uname='linux mizar 2.6.3-deb2-skas3 #1 sun mar 14 14:46:35 pst 2004 i686 unknown '
    config_args='-Dccflags=-DDEBIAN -Dcccdlflags=-fPIC -Darchname=i386-linux -Dprefix=/usr -Dprivlib=/usr/share/perl/5.6.1 -Darchlib=/usr/lib/perl/5.6.1 -Dvendorprefix=/usr -Dvendorlib=/usr/share/perl5 -Dvendorarch=/usr/lib/perl5 -Dsiteprefix=/usr/local -Dsitelib=/usr/local/share/perl/5.6.1 -Dsitearch=/usr/local/lib/perl/5.6.1 -Dman1dir=/usr/share/man/man1 -Dman3dir=/usr/share/man/man3 -Dman1ext=1 -Dman3ext=3perl -Dpager=/usr/bin/sensible-pager -Uafs -Ud_csh -Uusesfio -Duseshrplib -Dlibperl=libperl.so.5.6.1 -Dd_dosuid -des'
    hint=recommended, useposix=true, d_sigaction=define
    usethreads=undef use5005threads=undef useithreads=undef usemultiplicity=undef
    useperlio=undef d_sfio=undef uselargefiles=define usesocks=undef
    use64bitint=undef use64bitall=undef uselongdouble=undef
  Compiler:
    cc='cc', ccflags ='-DDEBIAN -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64',
    optimize='-O2',
    cppflags='-DDEBIAN -fno-strict-aliasing -I/usr/local/include'
    ccversion='', gccversion='2.95.4 20011002 (Debian prerelease)', gccosandvers=''
    intsize=4, longsize=4, ptrsize=4, doublesize=8, byteorder=1234
    d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=12
    ivtype='long', ivsize=4, nvtype='double', nvsize=8, Off_t='off_t', lseeksize=8
    alignbytes=4, usemymalloc=n, prototype=define
  Linker and Libraries:
    ld='cc', ldflags =' -L/usr/local/lib'
    libpth=/usr/local/lib /lib /usr/lib
    libs=-lgdbm -ldb -ldl -lm -lc -lcrypt
    perllibs=-ldl -lm -lc -lcrypt
    libc=/lib/libc-2.2.5.so, so=so, useshrplib=true, libperl=libperl.so.5.6.1
  Dynamic Linking:
    dlsrc=dl_dlopen.xs, dlext=so, d_dlsymun=undef, ccdlflags='-rdynamic'
    cccdlflags='-fPIC', lddlflags='-shared -L/usr/local/lib'


Characteristics of this binary (from libperl): 
  Compile-time options: USE_LARGE_FILES
  Built under linux
  Compiled at Apr  4 2004 05:57:53
  @INC:
    /usr/local/lib/perl/5.6.1
    /usr/local/share/perl/5.6.1
    /usr/lib/perl5
    /usr/share/perl5
    /usr/lib/perl/5.6.1
    /usr/share/perl/5.6.1
    /usr/local/lib/site_perl
    .