Hi Powertop developers, Please help to evaluate if this is a bug: I was using Powertop 2.6.1 on RHEL7.1beta and some servers including Ivybridge-EP/EX and Haswell-1S/EP/EX. And found Frequency stats show only 100% idle and no other frequency percentage, like the following: PowerTOP 2.6.1 Overview Idle stats Frequency stats Device stats Tunab Package | Core | CPU 0 CPU 4 | | Actual 3.9 GHz 3.8 GHz Idle 100.0% | Idle 100.0% | Idle 100.0% 100.0% | Core | CPU 1 CPU 5 | | Actual 3.9 GHz 3.9 GHz | Idle 100.0% | Idle 100.0% 100.0% | Core | CPU 2 CPU 6 | | Actual 3.8 GHz 3.8 GHz | Idle 100.0% | Idle 100.0% 100.0% | Core | CPU 3 CPU 7 | | Actual 3.8 GHz 3.7 GHz | Idle 100.0% | Idle 100.0% 100.0% When I add workloads, the Idle percentage drops, but still no other frequency percentage. For servers, RHEL7 would use "throughput-performance" profile, which would keep processor at its top frequency. I just think PowerTop should not display idle percentage only, in my point of view, when no workload, 90%+ idle and a few percentage at max frequency is reasonable. when high workload, a few percentage idle and high percentage at max frequency is reasonable. The following is the result of "balanced" profile, at least not all 100% idle. PowerTOP 2.6.1 Overview Idle stats Frequency stats Device stats Tunab Package | Core | CPU 0 CPU 4 | | Actual 3.6 GHz 3.3 GHz Idle 99.8% | Idle 100.0% | Idle 100.0% 100.0% 4.00 GHz 0.1% | 4.00 GHz 0.0% | 4.00 GHz 0.0% 0.0% 3.31 GHz 0.0% | | 1400 MHz 0.0% | | 2.10 GHz 0.1% | | | Core | CPU 1 CPU 5 | | Actual 3.6 GHz 3.5 GHz | Idle 99.8% | Idle 100.0% 99.9% | 4.00 GHz 0.1% | 3.31 GHz 0.0% 0.1% | 3.31 GHz 0.0% | 1400 MHz 0.0% 0.1% | 1400 MHz 0.0% | 4.00 GHz 0.0% | 2.10 GHz 0.1% | | Core | CPU 2 CPU 6 | | Actual 3.4 GHz 3.2 GHz | Idle 100.0% | Idle 100.0% 100.0% | 4.00 GHz 0.0% | 4.00 GHz 0.0% 0.0% | 2.10 GHz 0.0% | 2.10 GHz 0.0% | | | | | Core | CPU 3 CPU 7 | | Actual 3.4 GHz 2.9 GHz | Idle 100.0% | Idle 100.0% 100.0% | 3.31 GHz 0.0% | 3.31 GHz 0.0% 0.0% | 4.00 GHz 0.0% | 4.00 GHz 0.0% | 2.10 GHz 0.0% | 2.10 GHz 0.0% Thanks, -Wang, Xiaolong from Intel OTC OSV-Enabling