c6cfc27f43 | ||
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obj | ||
LICENSE | ||
Makefile | ||
README.md | ||
demo.c | ||
lj_mm.h | ||
page_alloc.c | ||
page_alloc.h | ||
rb_test.cxx | ||
rbtree.c | ||
rbtree.h | ||
trunk.c | ||
trunk.h | ||
util.h |
README.md
luajit-mm
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.
Immediate todo
o.Refine and finish this README.
o.test, add enhancements.
problem statement:
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.
Basic ideas
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.