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An in-depth exploration of linux kernel memory management, focusing on virtual and physical memory. It covers the concepts of virtual memory, its benefits, and the role of the buddy and slab allocators. Understand how linux efficiently manages memory and allocates resources.
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. (32bit 2 32 4GB) -> . 4GB . .
- :^ , , . - : . - : .
order. order order , order.
2.6.19 Lazy buddy. Buddy ZONE watermark. . __free_pages() , __alloc_pages(). __free_pages() , MAX_ORDER( 10) loop , ( ) order , order nr_free.
. byte 4K. 19byte 4K 4077 byte free . . . cache. / cache.