Hi,

we are back with new features of KSM_overcommit test:
* NEW: guest_reserve and host_reserve are now calculated based on used 
memory
* NEW: tmpfs reserve is also evaluated to fit the overhead
* NEW: VM alive check during split_guest()
* FIX: In function split_guest() we used incorrect session
* MOD: Increase number of VNC ports


host_reserve:
* Still possible to set this value in cfg
* Calculation:
1) host_reserve = Available memory + minimal guest(128MB)
2) host_reserve += number of guests * 64

guest_reserve:
* Still possible to set this value in cfg
* Calculation:
1) guest_reserve = 256
2) guest_reserve += guest memory * constant
... where constant represents (TMPFS overhead and multiplicative OS 
memory consumption) per MB


Tested by ldoktor and jzupka on various HW (2GB-36GB host memory).

Best regards,
Lukáš Doktor