The Geek Stuff posted 10 useful sar (Sysstat) examples for UNIX / Linux Performance monitoring
Using sar you can monitor performance of various Linux subsystems (CPU, Memory, I/O..) in real time. Using sar, you can also collect all performance data on an on-going basis, store them, and do historical analysis to identify bottlenecks. Sar is part of the sysstat package.10 Useful Sar (Sysstat) Examples for UNIX / Linux Performance Monitoring
