RE: [PATCH] intel_idle: Fix C6S and C10 latency values for Pantherlake

On Wed, 2026-08-13 at 10:00 +0000, Artem Bityutskiy wrote:
> Platforms that do not have intel_idle custom table, use latency from
> ACPI _CST table. It only provides latency. Target residency is
> calculated as 3x latency.
>
> I do not know about _CST numbers. I only know that in many cases they
> are not what I can observe using wult tool.
>
> Panther Lake is the only client platform that I measured with the
> tools I developed, and submitted the numbers based on wult and pbe
> data that I got.

Thank you for the clarification, Artem.

Below is turbostat data from a 10-minute idle run on Pantherlake-L 
with the current values and with the proposed values:

  Metric      Base    with Patch
  --------  --------  -------
  C6S%          0.29     0.60
  C10%         99.34    99.00
  Pkg%pc6   87.84    89.48

C6S usage doubles and package idle improves with the proposed values.
C10 remains dominant for long idle periods — no regression.

Would it be possible to re-run the wult/pbe measurements on PTL?
  
BR,
Kaushlendra