WebScale Page#cname 5x in common case

Before:

Calculating -------------------------------------
    Page#cname short     14469 i/100ms
Page#cname long complicated
                            64 i/100ms
Page#cname long simple
                         15178 i/100ms
Page#cname unequal subs
                          2283 i/100ms
      Page#cname nil     46017 i/100ms
-------------------------------------------------
    Page#cname short   184833.2 (±3.8%) i/s -     926016 in   5.017931s
Page#cname long complicated
                          685.5 (±6.9%) i/s -       3456 in   5.067700s
Page#cname long simple
                       218743.0 (±6.6%) i/s -    1092816 in   5.020652s
Page#cname unequal subs
                        24945.6 (±8.9%) i/s -     125565 in   5.074429s
      Page#cname nil   835419.6 (±13.1%) i/s -    4141530 in   5.050379s

After:

Calculating -------------------------------------
    Page#cname short     29854 i/100ms
Page#cname long complicated
                          1713 i/100ms
Page#cname long simple
                         32481 i/100ms
Page#cname unequal subs
                         17541 i/100ms
      Page#cname nil     44163 i/100ms
-------------------------------------------------
    Page#cname short   512045.3 (±6.8%) i/s -    2567444 in   5.041484s
Page#cname long complicated
                        17156.7 (±12.3%) i/s -      83937 in   5.003266s
Page#cname long simple
                       513972.9 (±9.8%) i/s -    2565999 in   5.044852s
Page#cname unequal subs
                       239565.6 (±14.0%) i/s -    1175247 in   5.004900s
      Page#cname nil   760067.4 (±11.6%) i/s -    3753855 in   5.010967s