I've removed the code because this node was really long and annoying. It's in the source code of the page if you want it, but it's out of date since others have been added since then.

aha: I should've asked for this myself. A couple things wrong with it:

1. the dws() routine shifts @array instead of @_, so all code that ran after it (everything but danger()) was passed an empty @array. This is the big source of differences.(dws() also needs fixing to return the actual buckets).
2. the repson() routine does a my @array = shift when it should do a my @array = @_ (only affects its own standing).

below are corrected dws() and repson() routines, and I've taken this opportunity to include a fix for my silly holdover in my danger() routine:

sub dws {
    my $nbuckets = 3;#shift;  # number of buckets to divide @array int
+o
    my @bucket;        # @{$bucket{0 .. $nbuckets - 1}} are the bucket
+s

    foreach my $n( 0 .. $nbuckets - 1) {
        foreach my $size (1 .. int(0.9999 + @_ /($nbuckets - $n))){
            push @{$bucket[$n]}, shift @_;
        }
    }
    return @bucket;
}
sub repson {
    my @array = @_;
    my $num = 3;                    # buckets

    my $cnt = @array;               # total items
    my $base = int($cnt/$num);      #  }
    my $left = $cnt % $num;         #  } $cnt = ($base * $num) + $left

    my @buckets;
    for (1..$num) {
            push @buckets, [ splice(@array,0,$base + ($left-- > 0 && 1
+) ) ];
    }
    @buckets;
}
sub danger_fixed {
    my $buckets = shift;
    my @list    = @_;
    my $mod     = @list % $buckets;
    my $inc     = int(@list / $buckets);
    map{ [splice @list, 0, $inc + (--$mod >= 0)] } 0 .. $buckets - 1;
}

relative results:

           Rate  dws tilly   eg fast_sp2 tillyr danger repson fast_sp1
+ danger1 fastolfe
dws      1034/s   --   -1% -18%     -32%   -34%   -36%   -36%     -40%
+    -42%     -52%
tilly    1043/s   1%    -- -17%     -31%   -33%   -35%   -35%     -39%
+    -42%     -52%
eg       1263/s  22%   21%   --     -17%   -19%   -21%   -22%     -27%
+    -30%     -42%
fast_sp2 1516/s  47%   45%  20%       --    -3%    -5%    -6%     -12%
+    -16%     -30%
tillyr   1564/s  51%   50%  24%       3%     --    -3%    -3%      -9%
+    -13%     -28%
danger   1604/s  55%   54%  27%       6%     3%     --    -1%      -7%
+    -11%     -26%
repson   1613/s  56%   55%  28%       6%     3%     1%     --      -6%
+    -10%     -26%
fast_sp1 1723/s  67%   65%  36%      14%    10%     7%     7%       --
+     -4%     -21%
danger1  1796/s  74%   72%  42%      18%    15%    12%    11%       4%
+      --     -17%
fastolfe 2174/s 110%  108%  72%      43%    39%    36%    35%      26%
+     21%       --
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