Re: AMD EPYC throttled to 400 mhz

2022-01-21 Thread Andrei POPESCU
On Lu, 17 ian 22, 22:08:43, Alexander V. Makartsev wrote: > On 17.01.2022 18:40, Simon Kainz wrote: > > > > I did not set/change governor/driver settings, this is a stock debian > > kernel. > Is the server platform runs latest BIOS and firmware? > Things I'd try first if I was in your place. > I a

Re: AMD EPYC throttled to 400 mhz

2022-01-17 Thread Simon Kainz
Am 17.01.22 um 22:53 schrieb Mike Kupfer: > Simon Kainz wrote: > >> #Governor: >> root@node3:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor >> schedutil > > Maybe try a different governor? I had a different problem (CPU running > too hot) after upgrading to Bullseye, and the prob

Re: AMD EPYC throttled to 400 mhz

2022-01-17 Thread Mike Kupfer
Simon Kainz wrote: > #Governor: > root@node3:~# cat /sys/devices/system/cpu/cpu0/cpufreq/scaling_governor > schedutil Maybe try a different governor? I had a different problem (CPU running too hot) after upgrading to Bullseye, and the problem went away after I switched to the ondemand governor.

Re: AMD EPYC throttled to 400 mhz

2022-01-17 Thread didier gaumet
Hello Simon, Disclaimer: I am nowhere near knowledgeable regarding cpu frequency scaling Perhaps will you find tips in the official Lenovo doc to fine tune power saving under Linux for Thinksystem: https://lenovopress.com/lp0826.pdf it seems to require setup up the UEFI accordingly to use acpi-cp

Re: AMD EPYC throttled to 400 mhz

2022-01-17 Thread Alexander V. Makartsev
On 17.01.2022 18:40, Simon Kainz wrote: Am 17.01.22 um 11:36 schrieb Alexander V. Makartsev: On 17.01.2022 14:41, Simon Kainz wrote: Hello, we are experiencing spontaneous CPU speed throttlings. System is a Lenovo  ThinkSystem SR645 with 2 AMD EPYC 7452 32-Core Processor, running Linux node

Re: AMD EPYC throttled to 400 mhz

2022-01-17 Thread Simon Kainz
Am 17.01.22 um 11:36 schrieb Alexander V. Makartsev: > On 17.01.2022 14:41, Simon Kainz wrote: >> Hello, >> >> we are experiencing spontaneous CPU speed throttlings. >> >> System is a Lenovo  ThinkSystem SR645 with 2 >> AMD EPYC 7452 32-Core Processor, running >> >> Linux node3 5.10.0-10-amd64 #

Re: AMD EPYC throttled to 400 mhz

2022-01-17 Thread Alexander V. Makartsev
On 17.01.2022 14:41, Simon Kainz wrote: Hello, we are experiencing spontaneous CPU speed throttlings. System is a Lenovo ThinkSystem SR645 with 2 AMD EPYC 7452 32-Core Processor, running Linux node3 5.10.0-10-amd64 #1 SMP Debian 5.10.84-1 (2021-12-08) x86_64 GNU/Linux After some time (hours,