Speedstep

[FyreWall]

I have OPNsense 19.1.9-amd64 running on a Zotac Z Box with a Celeron N4100 cpu which can scale up to 2.4Ghz.
The Dashboard shows N4100 CPU @ 1.10GHz (4 cores) but does not show any speedstepping above 1.1GHz.

Is there a way to force speedstep or check if it is working?

I am a Linux newb so please answser like you are talking to an idiot (which you kind of are)  :)

Thanks for your help

[samsonmcnulty]

Should be an option in the Bios that will let you disable speedstep. You're also not going to see any boost clocks until you max out the cpu usage anyway.

[opnfwb]

The easiest way to check speedstep is to SSH to the firewall and run 'sysctl -a dev.cpu'.

In the output, you should see something like this:

Code Select Expand

dev.cpu.0.freq_levels: 1501/0 1500/0 1400/0 1300/0 1200/0 1100/0 1000/0 900/0 800/0
dev.cpu.0.freq: 800


If the CPU frequency is lower than your max frequency, speedstep is working. You can also tell if turbo boost is support if you see your maximum frequency +1mhz. In this case, in the sample provided above, 1501/0 indicates turbo is also supported. The current CPU frequency in the sample is 800mhz, which indicates that speedstep has throttled the CPU based on load and is using a lower frequency.

Before checking all this, ensure that you have PowerD enabled. System/Settings/Misc./Power Savings/ and select HiAdaptive or Adaptive.

[FyreWall]

Resurecting this as I have tried playing with Powerd some more.

With Powerd enabled and set at Adaptive, my cpu temperateres are higher than when I disable Powerd (Powerd off and Powerd set to Minimum seem to be the same).
Is that normal/correct?

Using command Powerd -v in ssh, I can see the cpu goes to 1001MHz (base clock +1MHz)  regardless if Powerd is on or off.
I was expecting temps to be higher with Powerd off so just curious.

Thanks