Swap

My three-year-old daughter would press play in Kids Player and wait ten seconds for the sound to start. That wait is why I upgraded my NAS from 2 GB to 10 GB of RAM. So: did it work? The honest answer is two answers. On paper, the upgrade was a triumph. In daily life, it made things about one second better. Both are true, and the gap between them is the most useful thing I learned. ...

For months, my home server ran nine apps on 2 GB of RAM. I kept expecting something to break. It didn’t. Load average sat around 0.2. Apps loaded. Nobody complained. I started to think 2 GB was just enough, and left it at that. Then one afternoon my three-year-old pressed the play button on Kids Player. Nothing happened. She pressed it again. Still nothing. About twelve seconds later, the audio started. ...