Re: [lmi] [lmi-commits] master f1ec209 1/9: Demonstrate that PETE has a non-zero overhead

[Vadim Zeitlin]

On Sun,  4 Apr 2021 07:00:19 -0400 (EDT) Greg Chicares 
<gchicares@sbcglobal.net> wrote:

GC> branch: master
GC> commit f1ec2099b587c101b95a3062ac2601acf77e7af0
GC> Author: Gregory W. Chicares <gchicares@sbcglobal.net>
GC> Commit: Gregory W. Chicares <gchicares@sbcglobal.net>
GC> 
GC>     Demonstrate that PETE has a non-zero overhead
GC>     
GC>     For each_equal(), it's about half as fast as plain C++.

 This seems amazingly poor, but I guess the vectors here might be small
enough that there is a non-negligible overhead from just the extra
functions calls involved when using PETE?

 I guess it's not worth looking into this further, as you would have
probably indicated if it were, but I didn't expect the abstraction penalty
to be so high here.

 Regards,
VZ

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