I'm running the 4.9.29-17 testing kernel on dom0, because my display requires
it.
At idle, my CPU runs around 40-45C. This is when I'm not using the laptop and
Qubes VM Manager, as well as dom0 system tools, show ~0% CPU usage.
Under load it can spike as high as 75C. Load in this case might be browsing an
SAAS tool or viewing a YouTube video.
I have an internal battery plus the largest external battery available, 94 Wh
in total. Normally, on Windows, this would translate into 12 to 17 hours of
battery life, but on Qubes I'm looking at 6 or less.
I'm assuming this has something to do with power management, so here is what
I'm seeing in xenpm while the system is under light to moderate load and the
system is hovering around 50C:
-------------------------------------
dom0: xenpm start 60
Timeout set to 60 seconds
Start sampling, waiting for CTRL-C or SIGINT or SIGALARM signal ...
Elapsed time (ms): 60000
CPU0: Residency(ms) Avg Res(ms)
C0 17208 (28.58%) 0.08
C1 42991 (71.40%) 0.20
C2 9 ( 0.02%) 0.30
C3 0 ( 0.00%) 0.00
P0 0 ( 0.00%)
P1 868 ( 5.53%)
P2 13 ( 0.09%)
P3 0 ( 0.00%)
P4 7 ( 0.05%)
P5 67 ( 0.43%)
P6 85 ( 0.54%)
P7 69 ( 0.44%)
P8 20 ( 0.13%)
P9 94 ( 0.60%)
P10 61 ( 0.39%)
P11 137 ( 0.87%)
P12 92 ( 0.59%)
P13 64 ( 0.41%)
P14 406 ( 2.59%)
P15 13719 (87.33%)
Avg freq 1036370 KHz
CPU1: Residency(ms) Avg Res(ms)
C0 17209 (28.58%) 0.08
C1 42992 (71.41%) 0.20
C2 7 ( 0.01%) 0.36
C3 0 ( 0.00%) 0.00
P0 0 ( 0.00%)
P1 925 ( 5.89%)
P2 18 ( 0.12%)
P3 33 ( 0.21%)
P4 38 ( 0.25%)
P5 50 ( 0.32%)
P6 38 ( 0.25%)
P7 67 ( 0.43%)
P8 37 ( 0.24%)
P9 104 ( 0.66%)
P10 91 ( 0.58%)
P11 156 ( 1.00%)
P12 73 ( 0.47%)
P13 59 ( 0.38%)
P14 444 ( 2.83%)
P15 13580 (86.39%)
Avg freq 1036370 KHz
CPU2: Residency(ms) Avg Res(ms)
C0 17408 (28.91%) 0.07
C1 42792 (71.07%) 0.17
C2 7 ( 0.01%) 0.40
C3 0 ( 0.00%) 0.00
P0 0 ( 0.00%)
P1 895 ( 5.67%)
P2 17 ( 0.11%)
P3 20 ( 0.13%)
P4 60 ( 0.38%)
P5 17 ( 0.11%)
P6 46 ( 0.30%)
P7 104 ( 0.66%)
P8 21 ( 0.13%)
P9 94 ( 0.60%)
P10 50 ( 0.32%)
P11 175 ( 1.11%)
P12 85 ( 0.54%)
P13 43 ( 0.28%)
P14 494 ( 3.13%)
P15 13685 (86.54%)
Avg freq 1036370 KHz
CPU3: Residency(ms) Avg Res(ms)
C0 17389 (28.88%) 0.06
C1 42814 (71.11%) 0.15
C2 4 ( 0.01%) 0.27
C3 0 ( 0.00%) 0.00
P0 0 ( 0.00%)
P1 888 ( 5.63%)
P2 11 ( 0.07%)
P3 0 ( 0.00%)
P4 34 ( 0.22%)
P5 59 ( 0.38%)
P6 37 ( 0.24%)
P7 65 ( 0.41%)
P8 40 ( 0.26%)
P9 88 ( 0.56%)
P10 60 ( 0.39%)
P11 143 ( 0.91%)
P12 53 ( 0.34%)
P13 100 ( 0.63%)
P14 523 ( 3.32%)
P15 13660 (86.64%)
Avg freq 1036370 KHz
Socket 0
Core 0 CPU 0
Core 1 CPU 2
---------------------------------------
And what xenpm is showing for frequency parameters
---------------------------------------
cpu id : 0
affected_cpus : 0
cpuinfo frequency : max [2801000] min [400000] cur [800000]
scaling_driver : acpi-cpufreq
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2801000 2800000 2700000 2500000 2400000 2200000 2000000
1800000 1600000 1500000 1300000 1100000 800000 700000 600000 *400000
scaling frequency : max [2800000] min [400000] cur [400000]
turbo mode : enabled
cpu id : 1
affected_cpus : 1
cpuinfo frequency : max [2801000] min [400000] cur [800000]
scaling_driver : acpi-cpufreq
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2801000 2800000 2700000 2500000 2400000 2200000 2000000
1800000 1600000 1500000 1300000 1100000 800000 700000 600000 *400000
scaling frequency : max [2800000] min [400000] cur [400000]
turbo mode : enabled
cpu id : 2
affected_cpus : 2
cpuinfo frequency : max [2801000] min [400000] cur [800000]
scaling_driver : acpi-cpufreq
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2801000 2800000 2700000 2500000 2400000 2200000 2000000
1800000 1600000 1500000 1300000 1100000 800000 700000 600000 *400000
scaling frequency : max [2800000] min [400000] cur [400000]
turbo mode : enabled
cpu id : 3
affected_cpus : 3
cpuinfo frequency : max [2801000] min [400000] cur [800000]
scaling_driver : acpi-cpufreq
scaling_avail_gov : userspace performance powersave ondemand
current_governor : ondemand
ondemand specific :
sampling_rate : max [10000000] min [10000] cur [20000]
up_threshold : 80
scaling_avail_freq : 2801000 2800000 2700000 2500000 2400000 2200000 2000000
1800000 1600000 1500000 1300000 1100000 800000 700000 600000 *400000
scaling frequency : max [2800000] min [400000] cur [400000]
turbo mode : enabled
-------------------------------------------
To me this all seems pretty reasonable, but there's clearly something wrong.
Any ideas?
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