Revision and Notes
Date | Owner | Revision | Notes | ||||||
|---|---|---|---|---|---|---|---|---|---|
| 1.0 | Initial release | |||||||
Table of Contents |
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Introduction
The Linux Kernel supports dynamic voltage and frequency switching (DVFS) in order to minimize power usage. Generally, the feature should remain enabled, however, if power consumption and heat dissipation aren't an issue and low latency is required, it might make sense to disable frequency scaling.
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Module | Maximum frequency (Hz) |
|---|---|
i.mx6 | 792000 |
i.mx8m plus/mini (Industrial) | 1600000 |
i.mx8m plus/mini (Commercial) | 1800000 |
CPU Frequency
Please Note:
The operation below requires root access.
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Where performance is the name of the scaling governor.
Changing CPU frequency
Please Note:
CPU frequency can be changed only when the scaling governor is set to userspace.
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Where frequency is one of the available CPU frequencies.
| Info |
|---|
Note: The userspace governor must be set to change the frequency value. |
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