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  • Array Intersection Bake-off

    calendar May 15, 2009 · 5 min read · performance java python php ruby  ·
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    One of those moments where an interview question turns into a research project, or is it really a bake off? The simple problem is demonstrate an algorithm to intersect two lists of numbers, fundamentally it’s a question about using modern interpreted languages and their associative array bits to make a simple …


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  • Zend Framework vs. Django Performance

    calendar Apr 24, 2009 · 1 min read · django php zend  ·
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    This is not a scientific nor rigorious test… But, here’s some interesting data for people to chew on. I’ve got a production site built using the Zend Framework and a beta site built using django. What’s interesting is the “Time spent downloading a page” graphs from Google Webmaster Tools. The Zend Framwork Graph — …


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  • Performance of Python, PHP and Perl

    calendar Jun 10, 2008 · 3 min read · performance perl php python  ·
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    Had a 7GB text file that I needed to run some parsing on (to prepare for a DB import). As part of my habit I pulled out perl and whipped up a quick program to parse and generate some loadable files. While watching it run I got to thinking about … why … why perl (yes, I know habbits are hard to break). So while watching …


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  • Bad Metrics for Trends in Programming Languages

    calendar Dec 6, 2007 · 2 min read · language php  ·
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    Was reading a posting about Trends in web development according to Google one section got me me thinking. Their trends show end user behavior as it relates to popularity. However, when I think about language popularity I think in terms of programs written or lines of code produced… The Google trend I think is a …


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David Koblas

Technologist who's focused on continual incremental improvement.
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Featured Posts

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  • Writing an echo server in libev and c++

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