The new php52s is just memory crazy !!!
top - 19:37:49 up 2 days, 5:52, 3 users, load average: 2.28, 2.08, 1.55
Tasks: 246 total, 4 running, 242 sleeping, 0 stopped, 0 zombie
Cpu(s): 15.0%us, 2.4%sy, 0.0%ni, 72.2%id, 10.2%wa, 0.0%hi, 0.1%si, 0.0%st
Mem: 32715788k total, 32224336k used, 491452k free, 2152k buffers
Swap: 2097148k total, 2097148k used, 0k free, 33692k cached
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
20805 root 20 0 26.3g 24g 2672 R 87.1 77.0 3:23.91 php
24909 root 20 0 5836m 5.3g 3144 R 41.9 17.1 3:27.37 php
46 root 20 0 0 0 0 D 11.0 0.0 0:55.57 kswapd0
26928 mysql 20 0 7398m 510m 3032 S 3.3 1.6 0:53.87 mysqld