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You'll often see instructions for creating and using disk images on Unix systems making use of the dd command. This is a strange program of [obscure provenance](https://en.wikipedia.org/wiki/Dd_(Unix)) that somehow, still manages to survive in the 21st century.
I have pretty basic needs from my desktop. I do 99% of my work using just three programs: a terminal emulator, Emacs, and Firefox. I don't want a lot of bells and whistles in my desktop, and I really just want it to get out of the way so I can do my work.
I am generally a fan of Go's approach to concurrency: writing code with goroutines is a lot easier than writing traditional nonblocking network servers in a language like C or C++. However, while working on a highly concurrent network proxy I came across an interesting realization about how the Go concurrency model…
If you've ever look at the disassembly output for C or C++ code, you'll probably notice that there are a lot of push/pop instructions. And if you pay close enough attention, you'll notice that the compiler prefers to use certain registers over others. In particular, compilers will prefer pushing "old" registers like…