| Date | Tue, 19 Jun 2018 14:16:43 +0200 | From | Peter Zijlstra <> | Subject | Re: [RFC PATCH v3 04/10] PM / EM: Expose the Energy Model in sysfs |
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On Mon, May 21, 2018 at 03:24:59PM +0100, Quentin Perret wrote: > This exposes the Energy Model (read-only) of all frequency domains in > sysfs for convenience. To do so, a parent kobject is added to the CPU > subsystem under the umbrella of which a kobject for each frequency > domain is attached. > > The resulting hierarchy is as follows for a platform with two frequency > domains for example: > > /sys/devices/system/cpu/energy_model > ├── fd0 > │ ├── capacity > │ ├── cpus > │ ├── frequency > │ └── power > └── fd4 > ├── capacity > ├── cpus > ├── frequency > └── power >
Given that each FD can have multiple {freq,power} tuples and sysfs has a one value per file policy, how does this work?
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