Short version (higher is better):
                   Text::CSV_XS         Text::CSV_PP
             ----------------------  ----------------
             0.23  0.25  0.43  0.65  1.00  1.06  1.19 
             ====  ====  ====  ====  ====  ====  ==== 
combine   1    70    67    98    96    15    15    14 
combine  10    48    47    96   100     6     6     5 
combine 100    40    40    96    99     5     5     4 
parse     1   100    86    88    89    12     6     5 
parse    10   100    98    93    91     8     3     3 
parse   100    97   100    95    97     7     2     2 
print    io    87    86    94    99    79     6     5 
getline  io    64    64    93   100     -     2     1 
             ----  ----  ----  ----  ----  ----  ---- 
average        75    73    94    96    16     5     4