Apache processes, process size, IP clients, and status

To help monitor apache performance, here are some useful command line recipes.

Show how many apache processes are running

ps aux | grep [h]ttpd | wc -l
The bracketed [h] prevents the grep process itself from being counted.

Show the average apache process size in MB

ps aux | grep [h]ttpd | awk '{print $6/1024;}' | awk '{avg += ($1 - avg) / NR;} END {print avg " MB";}'

Show the top 10 apache client IPs by number of sockets

/bin/netstat -ntp | /bin/awk '$4 ~/:(80|443)$/ {print $5}' | /bin/sed 's/.*ffff://' | /bin/cut -d: -f 1 | /bin/sort | /usr/bin/uniq -c | /bin/sort -nr | /usr/bin/head

Show full status

apachectl fullstatus