The author details a university project investigating the impact of CPU core scheduling decisions within the Linux EEVDF scheduler, highlighting that simple cache locality is insufficient. The analysis demonstrates that minimizing cache hierarchy traversal levels across sockets is critical for performance, especially regarding shared memory coherence actions. This provides technical insight into the complexities of modern multi-socket processor scheduling.
Background
Modern multi-core and multi-socket CPUs rely heavily on complex cache hierarchies and coherence protocols to maintain performance. The Linux kernel's EEVDF scheduler aims to optimize process placement to reduce latency caused by cache misses and inter-socket communication.
- Source
- Lobsters
- Published
- Jul 19, 2026 at 08:45 AM
- Score
- 6.0 / 10