I’ve worked several different shops now that seem to have a misconception about burn-in. So I’m going to explain it. I think there’s a misconception that if you let a computer run with a light load for a while, it somehow gets stronger, and ready to handle a big workday load. I’m 5’9″ and weigh […]
Tom Gatermann told me about a nice tool for Debian (and presumably Ubuntu) called checkrestart. Sometimes, even though you did an apt-get update and apt-get upgrade to bring your system up to date, you can still be running the out-of-date version of something. That’s the problem checkrestart helps you solve.
I ran my site through Google Page Speed on Tuesday, and scored a surprising 88 out of 100–higher than I expected. Getting above 90 is going to take some optimizations on files that WordPress updates may change, so I’m hesitant to do that, but one thing it told me to do was to cache more […]
If your web server is slow and you want to fix it, it’s nice to be able to quantify what you got. Enter Apachebench, which is part of Apache and probably already on your server.
A long project can be paralyzing at times, making it hard to figure out where to start. A trick that I learned in model railroading is to just work on whatever small percentage of the project that bothers you the most. Then, when that’s done, cycle back, create another subproject that fixes whatever bugs you […]
Earlier this week, The Register touted the benefits of having a home lab. That lab doesn’t necessarily have to be elaborate. But there is definitely something to be said for having some equipment that you can learn and experiment on, and that can break without the world ending.
A couple of years ago, I stood up a WordPress server. I made no effort to tune it, let alone turbocharge it, which is a decision I later came to regret. If your site gets more than a few hundred hits per day, you need to tune it. If you want to get more than […]
My problems seem to have become more rare since I started blocking spambots and tuned PHP and Apache but last night my server ran out of memory again and started timing out. It turns out I still had a critical problem, but one that’s easy to fix with a relatively simple Perl script.