57,58c57,62
< mem_size_mb = sum([int(dir_cntrl.directory.size_mb) \
< for dir_cntrl in dir_cntrls])
---
> #
> # determine the total memory size of the ruby system
> #
> total_mem_size = MemorySize('0B')
> for dir_cntrl in dir_cntrls:
> total_mem_size.value += dir_cntrl.directory.size.value
69c73
< mem_size_mb = mem_size_mb)
---
> mem_size = total_mem_size)