Seven essential WordPress plugins

Filed under: Security, Uncategorized

Here are the plugins I recommend for use on a WordPress blog.

Most (not all) of these plugins are generic, meaning that they are not bound to a specific type of blog and may (or should) be used regardless of what you write.

All of these plugins are top quality (IMHO) and provide an invaluable service for any blogger. I wholeheartedly recommend that you use and support them. I think that all of these should be apart of a standard WordPress installation.
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@font-face for a programmer’s blog?

Filed under: Other Useful Links, Web-development

I’m sure that many of you are well aware of the exceptional @font-face CSS3 rule, which made life much easier for many designers, I would think. A few days ago I started wondering if it would be appropriate to use such an instrument on my blog… the site you’re on! Yoopie!

And, why not!? I love the idea of making my source codes more readable by using some custom font (Consolas in action). Anyway, I started looking around for some fonts and was not pleased with any of them (well to be fair I did like DejaVu Sans Mono but not as much as Consolas, unfortunately).
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URI parsing using Bash built-in features

Filed under: Bash scripting, Command line tools

A bit of background

A while ago I posted an article describing how one could parse complete URIs in Bash using the sed program. Since then, I have realized that there is a better way to do it, a much better way: via Bash built-in pattern matching! 
Here are some benefits of this improvement:

• It no longer executes external programs (i.e. sed) for pattern matching. This translates to higher speed and lower memory and CPU usages, which means that you could use this parser for much more intense URI crunching.
• The new regular expressions are drastically simplified thanks to the ${BASH_REMATCH[*]} array that is able to hold more than 9 matched sub-expressions, unlike sed that can only work with single-digit escapes: \1-\9 (yuck!).
• The parsing algorithm is contained in a single Bash function, so no external file is needed to hold the regular expressions. This also means, obviously, that the pattern file is no longer loaded from disk on every execution (so HDD is saved as well).
• The generated variables are named identically to the first version, so you should be able to upgrade your scripts to this version with absolutely minimal effort.
• [Edit]
  No eval instruction is needed (unlike in the first version), further improving performance.

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First impressions on Loomiere/Stream performance

Filed under: Networking

As promised, here are some of the first monitoring statistics of Loomiere/Stream in a production environment after moving away from psstream. Only one server is considered, a Quad-core Xeon with 8GB RAM (not that they are used anymore).

This shows the memory usage over one week (the switch was made on the 29th as is obvious).

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