On 09/26/2012 09:14 AM, Jérémie Dubois-Lacoste wrote: > 1. Run a python script and check the memory that > it requires (field "VIRT" of the "top" command). Don't use VIRT as a reference for memory used. RES is a better indication, but even that won't tell you anything useful about shared memory, and will lead you to believe that a process is using more memory than it is.