I was benchmarking Data::Serialize and thought that my fellow monks might have some interest
store is raw Storable
data is raw Data::Dumper
xml is a XML::Parser parsed xml file. This is what generated the data that is being serialized. The others are others are Data::Serialized outputs. All have b64 encoding. The first letter is y for YAML, d for Data::Dumper and s for Storable. The following e and c are for encryped and compressed.

         Rate     yc   data     dc      d    xml    sce      s     sc  store
yc    0.595/s     --   -96%   -97%   -97%   -98%   -99%   -99%   -99%  -100%
data   13.3/s  2140%     --   -43%   -43%   -61%   -76%   -87%   -88%   -89%
dc     23.2/s  3800%    74%     --    -1%   -32%   -58%   -77%   -79%   -81%
d      23.4/s  3835%    76%     1%     --   -32%   -58%   -77%   -79%   -81%
xml    34.2/s  5651%   157%    47%    46%     --   -38%   -66%   -69%   -72%
sce    55.1/s  9164%   314%   138%   135%    61%     --   -46%   -50%   -55%
s       102/s 17008%   664%   339%   335%   197%    85%     --    -8%   -16%
sc      110/s 18411%   726%   375%   370%   222%   100%     8%     --    -9%
store   122/s 20332%   812%   424%   419%   255%   121%    19%    10%     --

File sizes

164365 cclogin.data
 30858 cclogin.d
 24680 cclogin.se
 24566 cclogin.s
 12278 cclogin.store
  3106 cclogin.yc
  2966 cclogin.xml
  2342 cclogin.sce
  2222 cclogin.sc
  1890 cclogin.dc