[PATCH v6 0/4] Add support for AArch64 AMUv1-based arch_freq_get_on_cpu

Catalin Marinas catalin.marinas at arm.com
Mon Jul 8 10:10:02 PDT 2024


Hi Beata,

On Mon, Jun 03, 2024 at 09:21:50AM +0100, Beata Michalska wrote:
> Introducing arm64 specific version of arch_freq_get_on_cpu, cashing on
> existing implementation for FIE and AMUv1 support: the frequency scale
> factor, updated on each sched tick, serves as a base for retrieving
> the frequency for a given CPU, representing an average frequency
> reported between the ticks - thus its accuracy is limited.
> 
> The changes have been rather lightly (due to some limitations) tested on
> an FVP model. Note that some small discrepancies have been observed while
> testing (on the model) and this is currently being investigated, though it
> should not have any significant impact on the overall results.

What's the plan with this series? Are you still investigating those
discrepancies or is it good to go?

-- 
Catalin



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