Some performance monitoring stuff that's been on my radar lately
June 23, 2009
Monitoring server load on Linux
I’m all about top and mytop, but there’s at least one surprise in here for me – namely, /usr/bin/tload.
Measuring & Optimizing I/O Performance using iostat…
If IO performance is suspect, iostat is your best friend. Having said that, the man pages are cryptic so don't be surprised if you find yourself reading the source. To get started, identify the device in question and start a monitoring process...
which contains a note on how Facebook stores 360 photo uploads every second.