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Re: [PATCH v5 17/18] tools: optimize cpufreq average freq print
- To: Penny Zheng <Penny.Zheng@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Thu, 12 Jun 2025 15:31:27 +0200
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- Cc: ray.huang@xxxxxxx, Anthony PERARD <anthony.perard@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
- Delivery-date: Thu, 12 Jun 2025 13:31:39 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 27.05.2025 10:48, Penny Zheng wrote:
> Unlike Cx/Px states, for which we need an extra loop to summerize residency (
> sum_cx[]/sum_px[]), we could call get_avgfreq_by_cpuid() right before
> printing.
> Also, with introduction of CPPC mode, average frequency print shall
> not depend on the existence of legacy P-states, so we remove "px_cap"
> dependancy check.
>
> Fixes: add6160d7 (Add cpufreq actual average freq information to xenpm tools)
Unlike in earlier instances, here you have a fixes tag when the title merely
says "optimize". I also can't spot any bug that would be fixed here; what you
address is indeed an inefficiency.
As and aside: The Fixes: tag wants 12 digits of the hash quoted, and the
canonical form also has the title in quotes. You'll find numerous good
examples in patches being submitted.
Jan
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