Created attachment 218282 [details] dmesg output Hello everyone, It would seems that FreeBSD cpufreq driver does not yet fully support AMD Ryzen 9 4900H processor. When doing a sysctl dev.cpu.0 on a FreeBSD current at svn revision r366130 it shows : root@laptop:~ # sysctl dev.cpu.0 dev.cpu.0.temperature: 51.0C dev.cpu.0.cx_method: C1/hlt C2/io C3/io dev.cpu.0.cx_usage_counters: 17638 0 929634 dev.cpu.0.cx_usage: 1.86% 0.00% 98.13% last 7510us dev.cpu.0.cx_lowest: C8 dev.cpu.0.cx_supported: C1/1/1 C2/2/400 C3/3/350 dev.cpu.0.freq_levels: 3300/4021 1700/1615 1400/1277 dev.cpu.0.freq: 1400 dev.cpu.0.%parent: acpi0 dev.cpu.0.%pnpinfo: _HID=ACPI0007 _UID=1 _CID=none dev.cpu.0.%location: handle=\_SB_.PLTF.P000 dev.cpu.0.%driver: cpu dev.cpu.0.%desc: ACPI CPU root@laptop:~ # You can see that the cpu can go from 1400 Mhz to 3300 Mhz but it is supposed to be capable to boost to 4400 Mhz (AMD specifications can be found here : https://www.amd.com/en/products/apu/amd-ryzen-9-4900h). during the boot I can see that cpufreq detects something : hwpstate0: <Cool`n'Quiet 2.0> on cpu0 Is turbo mode implemented for Ryzen Zen 2 3rd gen CPUs ?
Created attachment 218283 [details] devinfo -v output
Created attachment 218284 [details] pciconf -lv output
I don't think turboboost corresponds directly to P-states. My understanding is that turboboost/CPB can happen automatically any time the processor is in P0 (the nominal 3300 MHz state). This is the same as on Zen+ and Zen1. The hwpstate0 / Cool'n'Quiet driver is just the one that provides P-state control: dev.cpu.0.freq_levels: 3300/4021 1700/1615 1400/1277
(In other words, I don't think there's a boost bug here. We don't have a great way of *showing* the current boost frequency of CPU cores — I think we just show the current P-state's nominal frequency — but the cores should be boosting normally while in P0.)
Do I have a way to make absolutely sure that frequency can go to 4400 ? I tried to set debug.cpufreq.verbose but it only shows 3300
I don't think the CPU actually reports its true running speed. But you can measure it like this while heavily loading the CPUs. pmcstat -s unhalted-core-cycles -w 1
Hello. I have a Zotac machine with AMD Ryzen 3 3200U. Max. Boost Clock Up to 3.5GHz Base Clock 2.6GHz The CPU should have a turbo boost up to 3.5 Ghz but not going over 2600 using stress-ng. [2.6.0-RELEASE][root@pfSense.home.arpa]/root: /usr/local/bin/stress-ng --metrics-brief --cpu 0 --timeout 1h stress-ng: info: [11438] setting to a 3600 second (1 hour, 0.00 secs) run per stressor stress-ng: info: [11438] dispatching hogs: 4 cpu ^Cstress-ng: info: [11438] successful run completed in 45.30s stress-ng: info: [11438] stressor bogo ops real time usr time sys time bogo ops/s bogo ops/s stress-ng: info: [11438] (secs) (secs) (secs) (real time) (usr+sys time) stress-ng: info: [11438] cpu 187426 45.29 179.48 0.00 4138.10 1044.25 [2.6.0-RELEASE][root@pfSense.home.arpa]/root: sysctl dev.cpu.0.freq dev.cpu.0.freq: 1400 [2.6.0-RELEASE][root@pfSense.home.arpa]/root: sysctl dev.cpu.0.freq dev.cpu.0.freq: 2600 [2.6.0-RELEASE][root@pfSense.home.arpa]/root: sysctl dev.cpu.0.freq dev.cpu.0.freq: 2600 [2.6.0-RELEASE][root@pfSense.home.arpa]/root: sysctl dev.cpu.0.freq dev.cpu.0.freq: 2600 [2.6.0-RELEASE][root@pfSense.home.arpa]/root: sysctl dev.cpu.0 dev.cpu.0.temperature: 48.0C dev.cpu.0.cx_method: C1/hlt C2/io dev.cpu.0.cx_usage_counters: 2805206 0 dev.cpu.0.cx_usage: 100.00% 0.00% last 30372us dev.cpu.0.cx_lowest: C1 dev.cpu.0.cx_supported: C1/1/1 C2/2/400 dev.cpu.0.freq_levels: 2600/3168 1700/1615 1400/1277 dev.cpu.0.freq: 1700 dev.cpu.0.%parent: acpi0 dev.cpu.0.%pnpinfo: _HID=none _UID=0 _CID=none dev.cpu.0.%location: handle=\_PR_.P000 dev.cpu.0.%driver: cpu dev.cpu.0.%desc: ACPI CPU regards