Sar Utility

Here the folowing the description of  sar utility :

sar -a  Monitor file access
sar -b    Monitor buffer activity
sar -c    Monitor call activity
sar -d     Monitor disk activity
sar -g    Monitor page out and memory
sar -k    Checking kernel memory allocation
sar -m    Monitor Interproses comunication
sar -p    Monitor page-in activity
sar -q    Monitor queue activity
sar -r    Monitoring unused memory
sar -u    Monitoring CPU utilize
sar -v    Monitoring system table
sar -w    Monitoring swap activity
sar -y    Monitoring terminal activity
sar -A    Monitoring overall system performnce