This is what a shared hosting server looks like just before it runs out of memory (both physical and swap). My shell is hung. The sites are down.

top - 06:13:44 up 28 days,  2:47,  1 user,  load average: 83.66, 37.25, 16.93
Tasks: 343 total,   1 running, 341 sleeping,   1 stopped,   0 zombie
Cpu(s):  3.9% us, 13.5% sy,  0.0% ni,  0.0% id, 82.3% wa,  0.0% hi,  0.3% si
Mem:   2058360k total,  2044548k used,    13812k free,     2000k buffers
Swap:  2048276k total,  2048276k used,        0k free,    36644k cached

  PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND
31462 nobody    15   0  303m  39m 2696 S    5  2.0   0:00.92 httpd
   64 root      15   0     0    0    0 D    2  0.0  19:49.36 kswapd0
31581 nobody    17   0  200m  12m 2928 D    2  0.6   0:00.11 httpd
31341 nobody    16   0  258m  29m 2864 S    2  1.5   0:00.65 httpd
31347 nobody    17   0  200m  14m 4136 D    1  0.7   0:00.06 httpd
31356 nobody    15   0  239m  28m 3028 D    1  1.4   0:00.98 httpd

And I can't poke it. Damn shared hosting.