Potential speed boost for the Pi 5
New memory access schema could deliver significant single-core and multi-core boost.
Igalia, the free software consultancy known for its work on the Raspberry Pi’s GPU, has revealed that it is investigating NUMA (non-uniform memory access) emulation for ARM64 devices. The investigations have so far yielded a potential and significant performance uplift for the Raspberry Pi 5, discussed on a Linux kernel list via a message from Tvrtko Ursulin.
According to the post, “This series adds a very simple NUMA emulation implementation and enables selecting it on ARM64 platforms.” Figures determined using Geekbench 6 test runs reveal that this improves single-core performance by 6% and multi-core performance by approximately 18%.