Digests » 293

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Stack Overflow: How We Do Monitoring

What is monitoring? As far as I can tell, it means different things to different people. But we more or less agree on the concept. I think. Maybe. Let’s find out!

Why is 2 * (i * i) faster than 2 * i * i in Java?

There is a slight difference in the ordering of the bytecode. At first sight this should not make a difference; if anything the second version is more optimal since it uses one slot less. So we need to dig deeper into the lower level (JIT)1.

UTF-7: a ghost from the time before UTF-8

On Halloween this year I learned two scary things. The first is that a young toddler can go trick-or-treating in your apartment building and acquire a huge amount of candy. When they are this young they have no interest in the candy itself, so you are left having to eat it all yourself. The second scary thing is that in the heart of the ubiquitous IMAP protocol lingers a ghost of the time before UTF-8. Its name is Modified UTF-7.

Securing Sensitive Data in Rails

It feels like data breaches are showing up every week in the news. If you haven’t taken a second look at how you’re storing sensitive data, now is probably a good time. Users trust you with the privacy and security of their information.

Expert Excuses for Not Writing Unit Tests

I also mentioned that I was seriously considering writing content for the “Expert Excuses for Not Writing Unit Tests” one. I think I had this idea at the time that it was something I could potentially sell or use to raise my profile. Since I am not a comedy writer there is a market of about 0 people in the universe who would pay for content like this. I have no idea what I was thinking.

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