Bug 219526
| Summary: | A case for setting energy_performance_preference to balance_performance by default | ||
|---|---|---|---|
| Product: | Power Management | Reporter: | Artem S. Tashkinov (aros) |
| Component: | Other | Assignee: | Mario Limonciello (AMD) (mario.limonciello) |
| Status: | RESOLVED PATCH_ALREADY_AVAILABLE | ||
| Severity: | high | CC: | mario.limonciello |
| Priority: | P3 | ||
| Hardware: | AMD | ||
| OS: | Linux | ||
| Kernel Version: | Subsystem: | ||
| Regression: | No | Bisected commit-id: | |
performance balance_performance Watts 14W 7W CPU frequency 5000MHz 3000MHz Temps 60C 40C Fan Loud Barely audible Default policy is set by the firmware. It's overriden by userspace (power profiles daemon) based upon whether running on AC or battery. (In reply to Mario Limonciello (AMD) from comment #2) > Default policy is set by the firmware. It's overriden by userspace (power > profiles daemon) based upon whether running on AC or battery. What stops you from overriding that? Technically? Nothing. It's a pretty trivial patch. Let me discuss it internally with others at AMD to decide though. Thanks a ton for the patch! Will be fixed in 6.13. Sure. But to clarify this will be 6.14 not 6.13. |
I would really love AMD to consider setting energy_performance_preference to balance_performance at least for laptops. By default amd-pstate overshoots frequencies and makes power consumption significantly higher for simple tasks such as watching YouTube videos with HW acceleration turned on. Here's a simple comparison: Watching a VP9 1080p YouTube video in Firefox with HW acceleration turned on: performance balance_performance Watts 14W 7W CPU frequency 5000MHz 3000MHz In terms of sustained performance for tasks that require full CPU use, the difference is negligible.