On 22/08/17 17:13, Matthew Auld wrote:
On 22 August 2017 at 15:56, Lionel Landwerlin
<lionel.g.landwerlin@xxxxxxxxx> wrote:
On 10/08/17 14:15, Matthew Auld wrote:
On 4 August 2017 at 12:20, Lionel Landwerlin
<lionel.g.landwerlin@xxxxxxxxx> wrote:
New issues that were discovered while making the tests work on Gen8+ :
- we need to measure timings between periodic reports and discard all
other kind of reports
- it seems periodicity of the reports can be affected outside of RC6
(frequency change), we can detect this by looking at the amount of
clock cycles per timestamp deltas
I think this would be easier to review if we split this into two patches...
Also, somewhat worrying is that I've yet to see the oa-exponents test
pass on my BDW machine.
See here:
https://paste.fedoraproject.org/paste/SmOw7eHEGOTjrLsvPVcZOw/raw
Was your screen off?
I don't think so, same result with it on/off though. I'm guessing that
is passes for you then?
Here's the pastebin again, since the other one is now toast:
https://paste.fedoraproject.org/paste/tjSb4jPZ87sWjhj7qAD~UA/raw
Chris helped prove that this probably be power management preventing the
unit to write its report to memory.
I don't think there is a way to tune that from userspace, so I guess
I'll try to detect this. It's pretty reproducible on my system with
screen off.
Maybe you're on battery only?
-
Lionel
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