Raspberry Pi 5 gets 10-15% speedup with 100 line Linux kernel patch. And what if we could save 50 megawatt-hours of power annually, just with a software patch for older Pis?
I'll walk through the NUMA Emulation patch that supposedly boosts Pi 5 performance, as well as some other new performance-related developments coming down the pike!
Mentioned in this video:
- Pi 5 NUMA Emulation Patch: lore.kernel.org/lkml/20240625...
- What is NUMA? lse.sourceforge.net/numa/faq/
- x86 Fake Numa for CPUSets: www.kernel.org/doc/html/v5.8/...
- Pi 1, 3 A+, 3 B+ S2Idle patch: lore.kernel.org/dri-devel/202...
- Raspberry Pi 5 A2 Command Queueing thread: forums.raspberrypi.com/viewto...
- My 2019 blog post on A2 microSD cards: www.jeffgeerling.com/blog/201...
- Pi 5 4GB model outperforming 8GB model: github.com/raspberrypi/firmwa...
- Overvolted Pi 5 from jonatron: jonatron.github.io/randomstuf...
- My video on M.2 NVMe on the Pi 5: • SBCs: It's time to dit...
Support me on Patreon: / geerlingguy
Sponsor me on GitHub: github.com/sponsors/geerlingguy
Merch: www.redshirtjeff.com
2nd Channel: / @geerlingengineering
3rd Channel: / @level2jeff
Contents:
00:00 - There's something off about Pi 5
01:27 - NUMA NUMA?
02:27 - The NUMA Emulation patch
04:29 - 50 MW of power savings (ish)
05:35 - microSD: A2 finally faster than A1
07:18 - Some Pis are slower than others
08:29 - Return of the Bloopers