Ever wanted to process some sar data to check when/why a server was busy? I'd usually just look for trends in the sar data or fire up gnuplot and plot the sar graphs, or just use munin/cacti if you have it configured but today I was pointed to ksar a graphing tool for sar but more importantly it works with Linux, Solaris, AIX and HP-UX sar data! Useful for adhoc search for trends in sar data across platforms.