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authorThomas Schwinge <tschwinge@gnu.org>2013-07-10 23:39:29 +0200
committerThomas Schwinge <tschwinge@gnu.org>2013-07-10 23:39:29 +0200
commit9667351422dec0ca40a784a08dec7ce128482aba (patch)
tree190b5d17cb81366ae66efcf551d9491df194b877 /microkernel/mach/gnumach/memory_management.mdwn
parentb8f6fb64171e205c9d4b4a5394e6af0baaf802dc (diff)
IRC.
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diff --git a/microkernel/mach/gnumach/memory_management.mdwn b/microkernel/mach/gnumach/memory_management.mdwn
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--- a/microkernel/mach/gnumach/memory_management.mdwn
+++ b/microkernel/mach/gnumach/memory_management.mdwn
@@ -188,3 +188,18 @@ License|/fdl]]."]]"""]]
patch
<braunr> (more kernel memory, thus more physical memory - up to 1.8 GiB -
but then, less user memory)
+
+
+# IRC, freenode, #hurd, 2013-06-06
+
+ <nlightnfotis> braunr: quick question, what memory allocation algorithms
+ does the Mach use? I know it uses slab allocation, so I can guess buddy
+ allocators too?
+ <braunr> no
+ <braunr> slab allocator for kernel memory (allocation of buffers used by
+ the kernel itself)
+ <braunr> a simple freelist for physical pages
+ <braunr> and a custom allocator based on a red-black tree, a linked list
+ and a hint for virtual memory
+ <braunr> (which is practically the same in all BSD variants)
+ <braunr> and linux does something very close too