~$ sudo powertop (Idle Stats tab)
Package | Core | CPU 0 CPU 4
POLL 0.0% | POLL 0.0% | POLL 0.0% 0.0 ms 0.0%
0.0 ms
C1 0.8% | C1 0.3% | C1 0.3% 0.2 ms 0.4%
0.6 ms
C2 12.7% | C2 7.2% | C2 10.4% 1.6 ms 4.0%
4.1 ms
C3 81.7% | C3 89.4% | C3 84.6% 6.6 ms 94.0%
8.9 ms
| Core | CPU 1 CPU 5
| POLL 0.0% | POLL 0.0% 0.0 ms 0.0%
0.0 ms
| C1 1.7% | C1 3.3% 0.9 ms 0.1%
0.2 ms
| C2 15.7% | C2 26.0% 1.8 ms 5.4%
2.0 ms
| C3 74.0% | C3 65.5% 4.0 ms 82.4%
25.2 ms
| Core | CPU 2 CPU 6
| POLL 0.0% | POLL 0.0% 0.0 ms 0.0%
0.0 ms
| C1 0.7% | C1 1.1% 0.2 ms 0.2%
0.2 ms
| C2 15.0% | C2 17.2% 2.3 ms 12.7%
1.1 ms
| C3 81.0% | C3 78.7% 5.4 ms 83.2%
7.9 ms
| Core | CPU 3 CPU 7
| POLL 0.0% | POLL 0.0% 0.0 ms 0.0%
0.0 ms
| C1 0.4% | C1 0.8% 0.2 ms 0.1%
0.1 ms
| C2 12.6% | C2 23.6% 1.3 ms 1.7%
1.6 ms
| C3 81.8% | C3 69.1% 4.7 ms 94.5%
9.4 ms
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https://bugs.launchpad.net/bugs/1672439
Title:
No C-State Deeper than C3 utilized by Kaby Lake 7820HQ in Precision
5520
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