cpufreq test reports the following when using a intel-pstate enabled kernel:
cpufreq: CPU frequency scaling tests.
--------------------------------------------------------------------------------
Test 1 of 1: CPU P-State tests.
For each processor in the system, this test steps through the various frequency
states (P-states) that the BIOS advertises for the processor. For each processor
/frequency combination, a quick performance value is measured. The test then
validates that:
1. Each processor has the same number of frequency states.
2. Higher advertised frequencies have a higher performance.
3. No duplicate frequency values are reported by the BIOS.
4. BIOS doing Sw_All P-state coordination across cores.
5. BIOS doing Sw_Any P-state coordination across cores.
WARNING: Test 1, Frequency scaling not supported.
I guess a message a little more helpful could be useful.
Fix sent to mailing list, https:/