Awesome Linux tool of the day: dstat
What is dstat? dstat is a versatile replacement for vmstat, iostat and ifstat.
Dstat allows you to view all of your system resources instantly. Eg, You can compare disk usage in combination with interrupts from your HDD controller, or compare the network bandwidth numbers directly with the disk throughput (in the same interval).
No blog post pimping a cool tool would be complete without the obligatory screen shot.