queue length and load averages:
sar -q -f /var/log/sa/sa$D
CPU utilization:
sar -u -f /var/log/sa/sa$D
swapping statistics:
sar -W -f /var/log/sa/sa$D
paging statistics:
sar -B -f /var/log/sa/sa$D
memory utilization statistics:
sar -r -f /var/log/sa/sa$D
activity for each block device:
sar -d -p -f /var/log/sa/sa$D
network statistics:
sar -n DEV -f /var/log/sa/sa$D
top 30 cpu usage process:
ps -eo pid,ppid,%cpu,%mem,vsz,rss,cmd –sort=-%cpu | head -n 30
top 30 mem usage process:
ps -eo pid,ppid,%cpu,%mem,vsz,rss,cmd –sort=-%mem | head -n 30