The following block of cmpthese prints are confusing me a bit. If you look at the wallclock seconds there are very large ( 70% to 80% ) differences in time. However, the comparison percentages are 10% or less. Can someone explain to me what I am misunderstanding? 

Benchmark: timing 100 iterations of smMod, smPlain...
     smMod: 198.103 wallclock secs (20.84 usr +  0.32 sys = 21.16 CPU)
+ @  4.72/s (n=100)
   smPlain: 1013.47 wallclock secs (22.88 usr +  0.39 sys = 23.27 CPU)
+ @  4.30/s (n=100)
          Rate smPlain   smMod
smPlain 4.30/s      --     -9%
smMod   4.72/s     10%      --
Benchmark: timing 100 iterations of seMod, sePlain...
     seMod: 161.968 wallclock secs (65.76 usr +  0.42 sys = 66.18 CPU)
+ @  1.51/s (n=100)
   sePlain: 435.528 wallclock secs (71.20 usr +  0.43 sys = 71.62 CPU)
+ @  1.40/s (n=100)
          Rate sePlain   seMod
sePlain 1.40/s      --     -8%
seMod   1.51/s      8%      --
Benchmark: timing 100 iterations of navMod, navPlain...
    navMod: 77.0209 wallclock secs (14.74 usr +  0.20 sys = 14.95 CPU)
+ @  6.69/s (n=100)
  navPlain: 317.475 wallclock secs (14.70 usr +  0.38 sys = 15.09 CPU)
+ @  6.63/s (n=100)
           Rate navPlain   navMod
navPlain 6.63/s       --      -1%
navMod   6.69/s       1%       --

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As a note, in case anybody wonders or it is relevant, the different functions are requesting the same pages from two different servers. One is running mod_perl and the other is vanilla CGI. Thanks in advance

In reply to Benchmark.pm ing -- and a little confused by Sifmole

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