Re: problems trying to use powerd with Xeon E5-2690 on HP ProLiant DL380p

From: Mark Saad <nonesuch_at_longcount.org>
Date: Wed, 09 Aug 2023 23:52:59 UTC
On Aug 9, 2023, at 6:27 PM, void <void@f-m.fm> wrote:
> 
> Hello stable@
> 
> I'm trying to run powerd (stable/13-n254781) but it fails to load, and this
> appears in dmesg:
> 
> interface hwpstate_intel.1 already present in the KLD 'kernel'!
> linker_load_file: /boot/kernel/cpufreq.ko - unsupported file type
> 
> and, earlier:
> 
> est0: <Enhanced SpeedStep Frequency Control> numa-domain 0 on cpu0
> est: CPU supports Enhanced Speedstep, but is not recognized.
> est: cpu_vendor GenuineIntel, msr 233a00002100
> device_attach: est0 attach returned 6
> 
> the last 3 lines appearing for every core on this cpu
> 
> Can powerd work with this chip? The kernel is GENERIC.
> 
> TY
> -- 


Hi void
   It will work , you will need to re-enable c-states and p-states etc in the bios . Dmesg is only showing the cpu has the options but the bios controls the ability to use it . Iirc hp has some opaque options to enable high performance mode in the bios . This usually kills most of the power management stuff .  Google for low latency tunings for your model and chances are you will find a pdf with options for making the host eat more power and improve latency as well as options that save power at the expense of increasing latency.



---
Mark Saad | nonesuch@longcount.org
>