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Waste-Free Per-CPU Userspace Memory Allocation
UD2.208 (Decroly) | Day 2 | 11:30 - 12:00 | Speakers: Mathieu Desnoyers
Waste-Free Per-CPU Userspace Memory Allocation
Abstract
Introduce the librseq per-CPU user-space memory allocator. It implements concepts similar to the Linux kernel percpu allocator in userspace, and thus reduces waste of per-CPU data structures hot cache lines by eliminating padding usually required to eliminate false-sharing, and in addition tackles issues that arise from resident memory waste when restricting processes with scheduler affinity or cpusets.
It allows prototyping kernel algorithms within the safe limits of user-space.
Speakers
Mathieu Desnoyers
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