On Wed, Oct 15, 2025 at 3:30 AM Sergey Senozhatsky senozhatsky@chromium.org wrote:
On (25/10/14 17:54), Rafael J. Wysocki wrote:
Sergey, can you please run the workload under turbostat on the base 6.1.y and on 6.1.y with the problematic commit reverted and send the turbostat output from both runs (note: turbostat needs to be run as root)?
Please find attached the turbostat logs for both cases.
Thanks!
First off, the CPUiD information reported by turbostat indicates that the system is a Jasper Lake. Is this correct?
Second, the overall picture I've got from the turbostat data indicates that there is a correlation between Bzy_MHz and CPU%c7 (the more time spent in C7, the higher the average "busy" frequency) which is generally consistent with the hypothesis that using more C1 causes the processor to drop the maximum frequency.
Something like this may be induced by RAPL power limits, presumably PL1.
Do you use thermald?