RGBCube/serenity
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Author SHA1 Message Date
Conrad Pankoff
b29a83d554 Kernel: Wrap around to region start if necessary in take_free_page 2019-06-12 15:38:17 +02:00
Conrad Pankoff
aee9317d86 Kernel: Refactor MemoryManager to use a Bitmap rather than a Vector 
This significantly reduces the pressure on the kernel heap when
allocating a lot of pages.

Previously at about 250MB allocated, the free page list would outgrow
the kernel's heap. Given that there is no longer a page list, this does
not happen.

The next barrier will be the kernel memory used by the page records for
in-use memory. This kicks in at about 1GB.
 2019-06-12 15:38:17 +02:00