I read your node - interesting, thanks. But I can't get results like yours. Could it be because the number of iterations in your test are too low?

Putting get_value() and get_value2() declarations at the beginning of program after the "my $self" line, I get:

              Rate    normal optimized    direct
normal    174625/s        --      -27%      -60%
optimized 240602/s       38%        --      -45%
direct    435374/s      149%       81%        --

[download]

Moving the subs to just above sub a() declaration, I get

              Rate    normal optimized    direct
normal    172275/s        --      -28%      -61%
optimized 239252/s       39%        --      -46%
direct    444444/s      158%       86%        --

[download]

I've tried a few more re-arrangements of the code layout, and I can't get the reversal that you did. All re-arrangements I've tried have 'direct' at 145-155%. Any chance you can post the code so I can duplicate the results? Logically, I would think that asking for the value of an arrayref element is going to be faster than calling a sub to do so, so the benchmarks appear to be logical to me.

In reply to Re^2: Unexpected OO accessor benchmarks by cLive ;-)
in thread Unexpected OO accessor benchmarks by cLive ;-)

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