On 27/02/2013 10:49, Chris Angelico wrote:
On Wed, Feb 27, 2013 at 9:36 PM, Robin Becker <ro...@reportlab.com> wrote:
However, in my case the method takes
py C
utf8 bytes 50 20 usec
unicode 39 15
here py refers to a native python method and C to the extension method
after adding to the class. Both are called via an instance of the class.
Which raises the obvious question: Does it even matter? Will the
saving of a few microseconds really make a difference? Python's best
feature is its clarity of code, not its blazing performance; its
performance goal is "fast enough", and for many MANY purposes, you
won't be able to tell the difference between that and "awesome". Don't
sacrifice your code's clarity to the little tin god of efficiency
until you're sure you actually get something back.
ChrisA
in fact this is the stringWidth function and it's used thousands of times. I
think when we did benchmark tests it came out as 1 or 2 as a cpu hog. Since it's
comparatively easy to code it's an obvious choice to move to C.
--
Robin Becker
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