Hi Catalin,Hi Beata,
On Mon, Jul 08, 2024 at 06:10:02PM +0100, Catalin Marinas wrote:
Hi Beata,Overall it should be good to go with small caveat:
On Mon, Jun 03, 2024 at 09:21:50AM +0100, Beata Michalska wrote:
Introducing arm64 specific version of arch_freq_get_on_cpu, cashing onWhat's the plan with this series? Are you still investigating those
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.
discrepancies or is it good to go?
as per discussion [1] we might need to provide new sysfs attribute exposing an
average frequency instead of plugging new code under existing cpuinfo_cur_freq.
This is to avoid messing up with other archs and make a clean distinction on
which attribute provides what information.
As such, the arch_freq_get_on_cpu implementation provided within this series
[PATCH v6 3/4] will most probably be shifted to a new function.
Hopefully will be able to send those changes soon.
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[1] https://lore.kernel.org/all/ZmrB_DqtmVpvG30l@xxxxxxx/
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BR
Beata
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Catalin