comment on

So here are my benchmark results on Win XP with version 5.10. Mine are drastically different showing the 'use constant' is fastest. Do the newer versions of Perl treat constants differently?

mod[3]sub[3]
my[3]local[3]
ref[3]alias[3]
            Rate CAlias   CRef CLocal    CMy   CSub   CMod
CAlias 3014249/s     --    -9%   -20%   -22%   -27%   -45%
CRef   3305288/s    10%     --   -12%   -14%   -20%   -40%
CLocal 3749148/s    24%    13%     --    -3%   -10%   -32%
CMy    3849294/s    28%    16%     3%     --    -7%   -30%
CSub   4149204/s    38%    26%    11%     8%     --   -25%
CMod   5504587/s    83%    67%    47%    43%    33%     --
[download]

In reply to Re^4: my $var; vs. use constant VAR = ''; by donaldhasson
in thread my $var = ''; vs. use constant VAR => ''; by antihero

Are you posting in the right place? Check out Where do I post X? to know for sure.
Posts may use any of the Perl Monks Approved HTML tags. Currently these include the following:
<code> <a> <b> <big> <blockquote> <br /> <dd> <dl> <dt> <em> <font> <h1> <h2> <h3> <h4> <h5> <h6> <hr /> <i> <li> <nbsp> <ol> <p> <small> <strike> <strong> <sub> <sup> <table> <td> <th> <tr> <tt> <u> <ul>
Snippets of code should be wrapped in <code> tags not <pre> tags. In fact, <pre> tags should generally be avoided. If they must be used, extreme care should be taken to ensure that their contents do not have long lines (<70 chars), in order to prevent horizontal scrolling (and possible janitor intervention).
Want more info? How to link or How to display code and escape characters are good places to start.


Come for the quick hacks, stay for the epiphanies.
	PerlMonks