intel_speed_shift.default_epp being ignored on boot

[KevinPeters]

Using OPNSense 22.1.8 typing in:

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sysctl dev.hwpstate_intel.0.epp=100

which results in a nice drop in CPU temperature.

I want this setting to persist at reboot, but regardless of where I put it, it is ignored. I have tried

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/boot/loader.conf.local
/etc/sysctl.conf
/etc/sysctl.conf.local
/etc/rc.conf.d/10-mysysctl

Interestingly, if I manually do a:

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service sysctl restart

It immediately picks up the new setting and the temps drop.

So my question is, where can I put the setting so that it will be read at boot time?

[meyergru]

Do in in System-> Settings -> Tuneables. It will survive a reboot.

[KevinPeters]

Thanks, that worked!!

[franco]

Just to comment on the previous attempts:

> /boot/loader.conf.local

Won't work if it's a runtime value.

> /etc/sysctl.conf
> /etc/sysctl.conf.local

We don't use the sysctl rc service.

> /etc/rc.conf.d/10-mysysctl

This doesn't make any sense?


Cheers,
Franco

[abulafia]

Also note that depending on your CPU, sysctl dev.hwpstate_intel.0.xyz may not work - on my i5250u, it doesn't :-(

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root@OPNsense:~ # sysctl dev.hwpstate_intel.0
sysctl: unknown oid 'dev.hwpstate_intel.0'