Linux's Early Boot-Time Physical Memory Allocator Big Speed-Up: ~268s to ~50ms

Bender 21 points 1 comment October 24, 2026
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Discussion Highlights (1 comments)

ruslan

Can someone please tell why Linux kernel needs this "early" memory allocator and what happens when kernel switches to standard allocator ? From what I know FreeBSD (and other BSDs?) has Universal Memory Allocator (UMA) that is used for everything.

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