18 Aug
2020
18 Aug
'20
1:28 a.m.
On 8/17/20, Jim Geist <velocityboy(a)gmail.com> wrote:
When did mmap(2) come about? Another thing I've
seen is building a small
block allocator on top of that. You can guarantee that all your objects are
nicely collected into the same set of pages for locality with very little
overhead.
mmap(2) certainly can be used to allocate blocks for the mini-heap
itself, but you still have to write your own equivalents of malloc()
and free() to allocate data structures within the mini-heap. The nice
thing about VMS heap zones and Microsoft's private heaps is that you
get the malloc()/free() layer off-the-shelf; you don't have to roll
your own.
-Paul W.