I've performed measurements with turbostat (kernel 5.13)
With new thermald ("bad" game performance):
GFXAMHz: 400, PgkWatt: 16.56, CorWatt: 7.34, GFXWatt: 3.88
With old thermald (good performance):
GFXAMhz: 650, PkgWatt: 14.86 CorWatt: 3.81, GFXWatt: 4.45
About game mode daemon: I have gamemode
** Attachment added: "turbostat with old thermald"
https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1944389/+attachment/5531776/+files/old.jpg
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I also checked with GTA IV game -- with the new thermald performance also
decreased. Average FPS for in-game benchmark drop from 53 to 42 (I run only one
attempt for each thermald version) (and game became unplayable as minimum FPS
in complex scenes became less than 30).
GTA IV has a different
Checked with kernel 5.13.0-1014-oem
(5.11.0-37-generic is not usable for this laptop as wifi and external display
are not recognized)
Both
# echo idle > workload_type
or
# echo bursty > workload_type
are not helpful.
Also balance_power is in
Thank you, Srinivas! I'll try to perform the tests with the proposed
configuration on the weekend.
Game: https://store.steampowered.com/app/20510/STALKER_Clear_Sky/ it costs 9.99
EUR but I'll be happy to buy it for your for the test purposes.
To run it with Steam on Linux one should enable
Srinvas, thank you for the explanation. But could you also explain what
do you mean by
> It only reduced total power
Are these 15 Watts limit (after reaching 53 degrees) for the whole Core i7 chip
(CPU+GPU+..) or for GPU chiplet only?
If this limit is for the whole chip than something is wrong
I just checked old and new behavior again.
First of all it's not clear for me from where this value of 53 is taken,
according to the data in /sys/class/thermal/thermal_zone5 (THP)
trip_point_0_hyst:4000
trip_point_0_temp:-274000
trip_point_0_type:passive
trip_point_1_hyst:4000
Here is the log
GPU frequency decreased to 400MHz at ~23:50 UTC+3
** Attachment added: "log.txt"
https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1944389/+attachment/5528265/+files/log.txt
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I've checked with the latest git version -- it has the same problem.
New behavior (git thermald, as well as latest Ubuntu version with backports):
thermald keeps the GPU frequency at 400 Hz after reaching 85 degrees, even if
temperature decreases to 74.
After the thermal regime stabilizes
This fix caused another bug:
https://bugs.launchpad.net/ubuntu/+source/thermald/+bug/1944389
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https://bugs.launchpad.net/bugs/1913186
Title:
Backport the adaptive engine from v2.4.1
Public bug reported:
After update to 1.9.1-1ubuntu0.6 from 1.9.1-1ubuntu0.4 thermald keeps Tigerlake
Iris Xe GPU frequency on 400 MHz after reaching some high temperature value. It
became impossible to play video games on the laptop.
System: Ubuntu 20.04.3 LTS
Kernel: 5.10.0-1045-oem
Laptop:
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