Yhn SciencePhysics first seen 5 d ago, last 34 min ago, peak #8

Linux slash early boot memory allocator time from 268 seconds to 50 milliseconds

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

The Linux kernel's early boot-time physical memory allocator, memblock, is getting a major performance overhaul, with initialization times dropping from roughly 268 seconds to around 50 milliseconds on affected systems. The optimization, covered by Phoronix ahead of the Linux 7.4 merge window, targets the slow initialization path that has long frustrated users booting large-memory servers. Developers and kernel enthusiasts are discussing how such a dramatic speed-up was possible.

Why now: A dramatic performance improvement to core kernel boot code is notable to developers and system administrators

Linux kernelmemblockPhoronixLinux 7.4

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• Linux's Early Boot-Time Physical Memory Allocator Big Speed-Up: ~268s to ~50ms · Bender · 23

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