En Wed, 11 Mar 2009 22:35:22 -0200, Philip Bloom <pbl...@crystald.com>
escribió:
Hello, this is my first time posting to the list, but my curiosity here
is great.
Welcome!
I was randomly toying with file writes and I ran into something that
seemed quite odd to me. When a period is in a string, file write takes
about double the time. I saw similar things with newlines, but I
figured that was because it was doing a lookup on the escape-d n. All
other symbols seem to not have this problem, so I'm curious what's
special about periods that they take so much longer to write to file.
I doubt the period is actually the culprit. There are lots of other
variables - like disk and memory fragmentation, cpu load, ...
You omitted part of your code: do you use the same filename on both tests?
(Note that starting with an empty file is not the same as using a
preallocated file).
Also, do you always run both scripts in the same order? (maybe "the
second" always runs faster, no matter which one is it).
Also note that you're measuring the time to allocate a list containing ten
million integer objects (the range() call). xrange is a less perturbing
option.
--
Gabriel Genellina
--
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