[Bug 217931] amd-pstate lacks crucial features: CPU frequency and boost control

[bugzilla-daemon@kernel.org]

https://bugzilla.kernel.org/show_bug.cgi?id=217931

--- Comment #53 from Perry Yuan(AMD) (Perry.Yuan@amd.com) ---
(In reply to Sjoer van der Ploeg from comment #52)
> (In reply to Perry Yuan(AMD) from comment #41)
> > (In reply to Sjoer van der Ploeg from comment #40)
> > > Could this be the reason why some CPU's do not boost to their maximum
> > > frequency, while they are happy to do so on Windows?
> > > 
> > > For example my 5800X3D never reaches 4550 on Linux, but on Windows it
> seems
> > > to have no problem getting there.
> > 
> > Could you share the output with below commands? then I can check that.
> > 
> > echo "=============norminal freq==============================="
> > cat /sys/devices/system/cpu/cpu*/acpi_cppc/nominal_freq
> > 
> > echo "=============norminal perf==============================="
> > cat /sys/devices/system/cpu/cpu*/acpi_cppc/nominal_perf
> > 
> > echo "=============highest_perf perf==============================="
> > cat /sys/devices/system/cpu/cpu*/acpi_cppc/highest_perf
> > 
> > echo "=============lowest_nonlinear_perf
> perf==============================="
> > cat /sys/devices/system/cpu/cpu*/acpi_cppc/lowest_nonlinear_perf
> > 
> > echo "=============lowest perf==============================="
> > cat /sys/devices/system/cpu/cpu*/acpi_cppc/lowest_perf
> > 
> > echo "=============lowest freq==============================="
> > cat /sys/devices/system/cpu/cpu*/acpi_cppc/lowest_freq
> > 
> > Perry.
> 
> =============nominal freq===============================
> 3401
> =============nominal perf===============================
> 124
> =============highest_perf perf===============================
> 196
> 171
> 196
> 166
> 186
> 181
> 191
> 176
> 171
> 196
> 166
> 186
> 181
> 191
> 196
> 176
> =============lowest_nonlinear_perf perf===============================
> 64
> =============lowest perf===============================
> 21
> =============lowest freq===============================
> 550
> 
> Only removed repeating values

How about the output of "lscpu -ae"?

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