** Tags added: cscc
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https://bugs.launchpad.net/bugs/1778476
Title:
[bionic] high cpu load HP probook iio-sensor-proxy
Status in linux package in Ubuntu:
Confirmed
No I don't have any /dev/bus/iio ( or /sys/bus/iio ), neither with
v4.15.* nor with HWE/4.18.0-14-generic
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Title:
[bionic] high cpu
is /dev/bus/iio even properly populated?
See LP: #1807250 LP: #1804804 LP: #1792813
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Title:
[bionic] high cpu load HP probook
Looks like the sensor has different mappings for different HP models.
Can you refer to [1] to see what mapping really works for your models?
[1] https://www.kernel.org/doc/Documentation/misc-devices/lis3lv02d
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With this service enabled, acpi is sending about 100 interrupts per
second.
dstat -t --top-int
system ---most-frequent
time | interrupt
03-10 11:04:12|9-fasteoi acpi 112
03-10 11:04:13|9-fasteoi acpi 112
03-10 11:04:14|9-fasteoi acpi 128
# grep acpi
Maybe run `watch -n0 cat /proc/interrupts` and see if there's any
spurious interrupt.
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Title:
[bionic] high cpu load HP probook
upstream (iio-sensor-proxy, not the kernel project) classified this bug
as "won't fix" because "Load average is not a good representation of the
CPU (or other resource) usage caused by an application."
Can someone confirm this information?
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Bug reported upstream:
https://github.com/hadess/iio-sensor-proxy/issues/231
** Bug watch added: github.com/hadess/iio-sensor-proxy/issues #231
https://github.com/hadess/iio-sensor-proxy/issues/231
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I now have 4.18.0-041800rc2-generic #201806241430 SMP Sun Jun 24
14:33:07 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux.
No change.
Edit: I just change my description : my idle is > 99% but my load
average is =~ 1.1 (any kernel)
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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** Description changed:
I have a many HP ProBook 450 G1 and HP ProBook 650 G3 with fresh install
of Ubuntu Desktop.
They all have a load average of 1.0 when idle (no graphical session
opened).
- vmstat shows idle=0% and waiting=~ 100%
+ vmstat shows idle =~ 100%
The process
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.18 kernel[0].
If this bug is fixed in the mainline kernel, please add the following
tag 'kernel-fixed-upstream'.
If the mainline kernel does not fix
apport information
** Tags added: apport-collected
** Description changed:
I have a many HP ProBook 450 G1 and HP ProBook 650 G3 with fresh install
of Ubuntu Desktop.
They all have a load average of 1.0 when idle (no graphical session
opened).
vmstat shows idle=0% and waiting=~
** Attachment added: "HP ProBook 650"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1778476/+attachment/5156283/+files/probook_650.txt
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** Attachment added: "HP ProBook 450"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1778476/+attachment/5156282/+files/probook_450.txt
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