Linux/perl mmap performance

Question

I\'m trying to optimize handling of large datasets using mmap. A dataset is in the gigabyte range. The idea was to mmap the whole file into memory, allowing multiple processes t

Answer 1

On 32-bit systems the address space for mmap()s is rather limited (and varies from OS to OS). Be aware of that if you're using multi-gigabyte files and your are only testing on a 64-bit system. (I would have preferred to write this in a comment but I don't have enough reputation points yet)