[SOLVED] Cannot set CPU governonr for Ryzen

raxbg · 2018-05-20 09:38:14

Hi,

cpupower frequency-info

returns

analyzing CPU 0:
  no or unknown cpufreq driver is active on this CPU
  CPUs which run at the same hardware frequency: Not Available
  CPUs which need to have their frequency coordinated by software: Not Available
  maximum transition latency:  Cannot determine or is not supported.
Not Available
  available cpufreq governors: Not Available
  Unable to determine current policy
  current CPU frequency: Unable to call hardware
  current CPU frequency:  Unable to call to kernel
  boost state support:
    Supported: no
    Active: no

I am also not able to set a CPU governor is this normal? I am trying

sudo cpupower frequency-set -g performance

but all I get is

Setting cpu: 0
Error setting new values. Common errors:
- Do you have proper administration rights? (super-user?)
- Is the governor you requested available and modprobed?
- Trying to set an invalid policy?
- Trying to set a specific frequency, but userspace governor is not available,
   for example because of hardware which cannot be set to a specific frequency
   or because the userspace governor isn't loaded?

How can I fix this? I want to lock my CPU to a certain frequency on all cores.

Thanks!

Update: It was a BIOS issue, which got fixed after updating to the latest version.

Last edited by raxbg (2018-05-20 15:16:52)

graysky · 2018-05-20 10:56:18

What is the output of:

uname -r

and

lscpu

Last edited by graysky (2018-05-20 10:57:01)

raxbg · 2018-05-20 11:04:55

uname -r
4.16.5-1-ARCH

lscpu
Architecture:        x86_64
CPU op-mode(s):      32-bit, 64-bit
Byte Order:          Little Endian
CPU(s):              16
On-line CPU(s) list: 0-15
Thread(s) per core:  2
Core(s) per socket:  8
Socket(s):           1
NUMA node(s):        1
Vendor ID:           AuthenticAMD
CPU family:          23
Model:               1
Model name:          AMD Ryzen 7 1700 Eight-Core Processor
Stepping:            1
CPU MHz:             3477.015
BogoMIPS:            5990.73
Virtualization:      AMD-V
L1d cache:           32K
L1i cache:           64K
L2 cache:            512K
L3 cache:            8192K
NUMA node0 CPU(s):   0-15
Flags:               fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc cpuid extd_apicid aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 movbe popcnt aes xsave avx f16c rdrand lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw skinit wdt tce topoext perfctr_core perfctr_nb bpext perfctr_llc mwaitx cpb hw_pstate sme sev vmmcall fsgsbase bmi1 avx2 smep bmi2 rdseed adx smap clflushopt sha_ni xsaveopt xsavec xgetbv1 xsaves clzero irperf xsaveerptr arat npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold avic v_vmsave_vmload vgif overflow_recov succor smca

graysky · 2018-05-20 11:27:22

And the output of: cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors

raxbg · 2018-05-20 12:28:40

cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
cat: /sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors: No such file or directory

There is no cpufreq dir under /sys/devices/system/cpu/cpu0

ls -l /sys/devices/system/cpu/cpu0/ 
total 0
drwxr-xr-x  7 root    0 May 20 03:24 .
drwxr-xr-x 24 root    0 May 20 03:24 ..
drwxr-xr-x  7 root    0 May 20 03:38 cache
-r--------  1 root 4.0K May 20 03:38 crash_notes
-r--------  1 root 4.0K May 20 03:38 crash_notes_size
lrwxrwxrwx  1 root    0 May 20 03:38 driver -> ../../../../bus/cpu/drivers/processor
lrwxrwxrwx  1 root    0 May 20 03:38 firmware_node -> ../../../LNXSYSTM:00/LNXCPU:00
drwxr-xr-x  2 root    0 May 20 03:38 hotplug
drwxr-xr-x  2 root    0 May 20 03:38 microcode
lrwxrwxrwx  1 root    0 May 20 03:38 node0 -> ../../node/node0
drwxr-xr-x  2 root    0 May 20 03:38 power
lrwxrwxrwx  1 root    0 May 20 06:52 subsystem -> ../../../../bus/cpu
drwxr-xr-x  2 root    0 May 20 03:38 topology
-rw-r--r--  1 root 4.0K May 20 03:38 uevent

graysky · 2018-05-20 14:04:59

What is the output of: ls /usr/lib/modules/$(uname -r)/kernel/drivers/cpufreq/

Do the modules exist? Modules loaded? Did you read the wiki (https://wiki.archlinux.org/index.php/CP … cy_scaling)?

Last edited by graysky (2018-05-20 14:05:13)

raxbg · 2018-05-20 15:15:15

Hm, there was a new version of my BIOS and flashing it seems to have fixed the issue.

P.S: Yes, I had read the frequency scaling article (went through it numerous times ) The modules were present in /usr/lib/modules/$(uname -r)/kernel/drivers/cpufreq/ but I was not able to load neither of them.

I will mark this as resolved, thanks!

Arch Linux

#1 2018-05-20 09:38:14

[SOLVED] Cannot set CPU governonr for Ryzen

#2 2018-05-20 10:56:18

Re: [SOLVED] Cannot set CPU governonr for Ryzen

#3 2018-05-20 11:04:55

Re: [SOLVED] Cannot set CPU governonr for Ryzen

#4 2018-05-20 11:27:22

Re: [SOLVED] Cannot set CPU governonr for Ryzen

#5 2018-05-20 12:28:40

Re: [SOLVED] Cannot set CPU governonr for Ryzen

#6 2018-05-20 14:04:59

Re: [SOLVED] Cannot set CPU governonr for Ryzen

#7 2018-05-20 15:15:15

Re: [SOLVED] Cannot set CPU governonr for Ryzen

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