Luajit take full advantage of lower 2G memory on AMD64 platform.
Rumdimentary implementation. Not yet fully tested. Not yet cleanup the code. Quite a few optimizatio is not yet implemented.
o.Refine and finish this README.
o.test, add enhancements.
On Linux/x86-64 platform, Luajit can use no more than 1G memory due to the combination of bunch of nasty issues. 1G is way too small for server-side application.
This package is trying to replace mmap/munmap/mremap with hence provide up to about 2G space.
o. When a application, which contain luajit, is launched, reserve the the space
from where `sbrk(0)` indidate all the way to 2G.
o. Perform page allocation on the reserved space. the mmap/munmap/mremap is built
on this page allocation. Currently, we use buddy allocation for page allocation
with some optimizations in an attemp to reduce working set.