PFSense on a DEC3840 (Netboard A20)

stephenw10

Ah, nice. Interesting that does anything.

Yes, that will be retained across updates.

Steve

bpl294

@stephenw10 One more thing, the cpu is being detected in PFSense as 2 cache groups x2cores. could this cause any performance impact? and is there a way to define what type of cores they are?

stephenw10

That's just how the CPU/BIOS reports it. I wouldn't expect it to make any difference.

More concerning is the fact it shows as running at 1200MHz. Does it ever rise from that?

You might need to enable powerd if you haven't already. Assuming there is a driver to support switching it.

Steve

bpl294

@stephenw10 Yea that was my other concern, it does not. If i disable PowerD, running " sysctl dev.cpu.0.freq " shows 2100. But with PowerD it stays at 1200 and that's with running multiple speed tests at gigabit over wireguard and not.

So i have disabled PowerD for now as the CPU temp is pretty steady at about 115 Fahrenheit.

stephenw10

Hmm, well if it changes when you enable it that shows it can set the frequency.
What profile did you use? Hi-Adaptive is usually the best to use.
It doesn't make a huge amount of difference to power consumption on modern CPUs anyway though.

Steve

bpl294

@stephenw10 I tried it Hi-Adaptive and Maximum, both stayed at 1200.

stephenw10

Hmm, I mean there is a possibility that CPU loading never gets high enough to start ramping up. Or that it's not detecting the loading correctly.

Try running:

sysctl -a | grep freq

So you see cpu frequency levels shown?

If so you can try killing powerd and setting the level manually.

Steve

bpl294

@stephenw10 it returns the following:

Would the command to set it manually be " set dev.cpu.0.freq_levels=2100/1890" ?

[2.6.0-DEVELOPMENT][root@core.sycamore]/root: sysctl -a | grep freq
kern.timecounter.tc.ACPI-fast.frequency: 3579545
kern.timecounter.tc.i8254.frequency: 1193182
kern.timecounter.tc.HPET.frequency: 14318180
kern.timecounter.tc.TSC.frequency: 2096114517
kern.ntp_pll.time_freq: 85052405328768
kern.ntp_pll.pps_freq: 89169788928000
device  cpufreq
kern.eventtimer.et.i8254.frequency: 1193182
kern.eventtimer.et.RTC.frequency: 32768
kern.eventtimer.et.HPET2.frequency: 14318180
kern.eventtimer.et.HPET1.frequency: 14318180
kern.eventtimer.et.HPET.frequency: 14318180
kern.eventtimer.et.LAPIC.frequency: 49907470
kern.acct_chkfreq: 15
net.inet.sctp.sack_freq: 2
debug.cpufreq.verbose: 0
debug.cpufreq.lowest: 0
debug.uart_poll_freq: 50
machdep.tsc_freq: 2096114517
machdep.i8254_freq: 1193182
machdep.acpi_timer_freq: 3579545
dev.cpufreq.0.%parent: cpu0
dev.cpufreq.0.%pnpinfo:
dev.cpufreq.0.%location:
dev.cpufreq.0.%driver: cpufreq
dev.cpufreq.0.%desc:
dev.cpufreq.%parent:
dev.hwpstate.0.freq_settings: 2100/1890 1700/1445 1200/990
dev.cpu.0.freq_levels: 2100/1890 1700/1445 1200/990
dev.cpu.0.freq: 2100

stephenw10

Ah, OK. Looks like it's working.

Kill the powerd process then:

sysctl dev.cpu.0.freq=1700

Or whichever speed you want.
The second number there is meant to be power consumption in mW. But I've always found it to be somewhat random!

Steve

bpl294

@stephenw10 that command did change the freq in the console:

stephenw10

Then maybe your test simply didn't load up the CPU enough.

bpl294

@stephenw10 So when i do a speed test over a WG interface it spikes the CPU up to 80% when the PowerD is enabled and at 1200mhz and it doesn't increase the freq. Is the CPU spiking that high good enough to say to increase the freq?

stephenw10

Yeah, 80% should be plenty high enough in highadaptive mode.

I would suggest powerd is not accurately reading the loading in that case. I'm not sure there's anything we can do about that.

bpl294

This post is deleted!

bpl294

@stephenw10 It seems as though that powerd isnt able to distinguish the option in its config. Because it is only using the option that i set for "Unknown Power"

This results in the cpu running in hi-adaptive mode. And i did notice the CPU dropped down to 1700 at one point. If i set that to Minimum, then it stays at 1200mhz. I am using the Apcupsd package. Not sure if they are communicating well.

stephenw10

Ah, that's probably OK then. The defaults we yuse are set hiadaptive for all three. It depends what the BIOS is reporting which is not reliable.
Powerd and apcupsd are not connected.

Steve