FFmpeg not saturating all Intel cores

[cdgriffith]

It has been observed that with newer Intel architectures FFmpeg sometimes only uses the Efficiency (E) cores instead of the Performance (P) cores, or less overall cores than expected.

Please follow the steps in the answer to hopefully resolve this issue for you.

If you still seem to have issues after all these steps have been completed. Please leave a comment with what you have tried and include the following information:

• Motherboard
• CPU
• BIOS version
• Windows Version
• FFmpeg version

Previous topics possibly affected by this:

• Using x265 encoder on intel 13900 doesn't use P-Core for encoding #415
• Recent change in encoding speed #363

[cdgriffith]

This is usually due to older versions of FFmpeg not understanding the newer chips design. Make sure to download the latest available ffmpeg You will have to unzip it to a location you want it to stay, then link to it manually in the FastFlix settings page.

If that doesn't work other thing to make sure of:

1. Windows is fully updated
2. Latest intel firmware installed for the CPU
3. Latest BIOS for the motherboard is installed