qa@SKLY-8:~$ lspci
00:00.0 Host bridge: Intel Corporation Sky Lake Host Bridge/DRAM Registers (rev 08)
00:02.0 VGA compatible controller: Intel Corporation Sky Lake Integrated Graphics (rev 07)
00:04.0 Signal processing controller: Intel Corporation Device 1903 (rev 08)
00:08.0 System peripheral: Intel Corporation Sky Lake Gaussian Mixture Model
00:14.0 USB controller: Intel Corporation Device 9d2f (rev 21)
00:14.2 Signal processing controller: Intel Corporation Device 9d31 (rev 21)
00:15.0 Signal processing controller: Intel Corporation Device 9d60 (rev 21)
00:15.1 Signal processing controller: Intel Corporation Device 9d61 (rev 21)
00:16.0 Communication controller: Intel Corporation Device 9d3a (rev 21)
00:17.0 SATA controller: Intel Corporation Device 9d03 (rev 21)
00:1e.0 Signal processing controller: Intel Corporation Device 9d27 (rev 21)
00:1e.4 SD Host controller: Intel Corporation Device 9d2b (rev 21)
00:1e.6 SD Host controller: Intel Corporation Device 9d2d (rev 21)
00:1f.0 ISA bridge: Intel Corporation Device 9d46 (rev 21)
00:1f.2 Memory controller: Intel Corporation Device 9d21 (rev 21)
00:1f.3 Audio device: Intel Corporation Device 9d70 (rev 21)
00:1f.4 SMBus: Intel Corporation Device 9d23 (rev 21)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection I219-LM (rev 21)

qa@SKLY-8:~$ grep . /sys/bus/pci/devices/0000\:00\:*/power/runtime_status /sys/bus/pci/devices/0000\:00\:*/power/runtime_suspended_time
/sys/bus/pci/devices/0000:00:00.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:02.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:04.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:08.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:14.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:14.2/power/runtime_status:active
/sys/bus/pci/devices/0000:00:15.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:15.1/power/runtime_status:active
/sys/bus/pci/devices/0000:00:16.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:17.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1e.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1e.4/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1e.6/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1f.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1f.2/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1f.3/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1f.4/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1f.6/power/runtime_status:active
/sys/bus/pci/devices/0000:00:00.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:02.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:04.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:08.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:14.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:14.2/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:15.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:15.1/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:16.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:17.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1e.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1e.4/power/runtime_suspended_time:238564
/sys/bus/pci/devices/0000:00:1e.6/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1f.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1f.2/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1f.3/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1f.4/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1f.6/power/runtime_suspended_time:0


After power tuning:

grep . /sys/bus/pci/devices/0000\:00\:*/power/runtime_status /sys/bus/pci/devices/0000\:00\:*/power/runtime_suspended_time
/sys/bus/pci/devices/0000:00:00.0/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:02.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:04.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:08.0/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:14.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:14.2/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:15.0/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:15.1/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:16.0/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:17.0/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1e.0/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1e.4/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1e.6/power/runtime_status:active
/sys/bus/pci/devices/0000:00:1f.0/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1f.2/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1f.3/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1f.4/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:1f.6/power/runtime_status:suspended
/sys/bus/pci/devices/0000:00:00.0/power/runtime_suspended_time:192564
/sys/bus/pci/devices/0000:00:02.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:04.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:08.0/power/runtime_suspended_time:192548
/sys/bus/pci/devices/0000:00:14.0/power/runtime_suspended_time:113384
/sys/bus/pci/devices/0000:00:14.2/power/runtime_suspended_time:192548
/sys/bus/pci/devices/0000:00:15.0/power/runtime_suspended_time:192548
/sys/bus/pci/devices/0000:00:15.1/power/runtime_suspended_time:192548
/sys/bus/pci/devices/0000:00:16.0/power/runtime_suspended_time:192548
/sys/bus/pci/devices/0000:00:17.0/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1e.0/power/runtime_suspended_time:192548
/sys/bus/pci/devices/0000:00:1e.4/power/runtime_suspended_time:453800
/sys/bus/pci/devices/0000:00:1e.6/power/runtime_suspended_time:0
/sys/bus/pci/devices/0000:00:1f.0/power/runtime_suspended_time:192548
/sys/bus/pci/devices/0000:00:1f.2/power/runtime_suspended_time:192564
/sys/bus/pci/devices/0000:00:1f.3/power/runtime_suspended_time:192548
/sys/bus/pci/devices/0000:00:1f.4/power/runtime_suspended_time:192564
/sys/bus/pci/devices/0000:00:1f.6/power/runtime_suspended_time:187480
qa@SKLY-8:~$ 
qa@SKLY-8:~$