debugging-tricks

average memory by apache processes (like in php prefork mode)

user@devserver:~$ ps -ylC apache2 | awk '{x += 8ドル;y += 1} END {print "Apache Memory Usage (MB): "x/1024; print "Average Process Size (MB): "x/((y-1)*1024)}'
Apache Memory Usage (MB): 60071.1
Average Process Size (MB): 162.794

global connection stats via netstat

user@devserver:~$ netstat -ant | awk '{print 6ドル}' | sort | uniq -c | sort -n
 1 Foreign
 1 Verbindungen)
 7 CLOSING
 12 FIN_WAIT1
 14 LAST_ACK
 14 SYN_RECV
 16 LISTEN
 122 FIN_WAIT2
 3055 VERBUNDEN
 12889 TIME_WAIT

kill process on port

fuser -n tcp -k 9000

php return response & callback with apache (run this at the beginning)