Apache load monitoring

check for the server load and watch for process

nice top -c (To decrease the load of top command)
top –d2
top –c d2

If Apache causing the load so check using following commands
netstat -ntu | awk ‘{print $5}’ | cut -d: -f1 | sort | uniq -c | sort –n

netstat -an |grep :80 |wc –l

netstat -n | grep :80 | wc -l;uptime ; netstat -n | wc –l

netstat –tupl

pidof httpd

history | netstat

lsof -p pid