[plug] Possible problem with memory leaks

[bwarff]

I think you need to run the 'free' command and see if that memory is
'really' in use, or if its just being used by the kernel for file/buffer
cache.
Many people are not aware that unix (and linux) aggressively cache files
while there is free memory to be found, as this speeds things up lots
(you will have noticed that the second time you start a program its much
faster than the first). If/When an application actually requires this
memory, the kernel will clear the cache and give the ram to the program.