These days I am working on a very nice project which has to do with simple music compositing inside a web browser. I thought to use the fine SoX which can do many things with the processing of sounds. I am using it to combine sound series and then mix a few of them. I need to export the sounds as OGG and MP3 files. The OGG files will be used by most of the HTML5 ready browser and there is a fallback with flash that will use the MP3 files. Even if a browser doesn't support the OGG file it will automatically use the MP3 file.
On my webservers I always use an installation of munin, to track events on my servers that happened while I was sleeping. Today, I saw that around 6 in the morning there where a huge increase of mysql requests, around 6.5 times more than the average count of requests. Also the cpu usage increased that time around 7.8 times over the average. That problem last for about 10 minutes. So I had to investigate it a little bit.