Hi koba, thanks for your update.

I don't know how to interpret it, though, I'm not familiar with that
benchmark you ran. The test plan asks for a game (let's call it
workload) to be used, and to show that the game is not throttled, i.e.,
FPS is not reduced.

We could transpose that to "run benchmark and show that the performance
is not reduced" I suppose, but then we would need numbers from a run
with the previous thermald and the new one. You showed numbers between
the proposed thermald and a later upstream one. And did thermald kick
in? Was the GPU throttled? The [impact] section of this bug says that
thermald was prematurely throttling the GPU. How can you show that now
it's not doing it anymore?

And what about test 2?
" * Run on others platform, ADL/TGL/CML/CFL/KBL."

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You received this bug notification because you are a member of Kernel
Packages, which is subscribed to thermald in Ubuntu.
https://bugs.launchpad.net/bugs/1981087

Title:
  thermald prematurely throttling GPU

Status in thermald package in Ubuntu:
  Fix Released
Status in thermald source package in Jammy:
  Fix Committed

Bug description:
  [Impact]
   * thermald prematurely throttling GPU

  [Fix]
  This fix is removed the code refactoring part and keep the necessary.

  (patch: 0009-Install-passive-default.patch)
  82609c7) Separate Adaptive engine and GDDV

  [Test Plan]
  Test1,
   * Run game on the target machine.
   * the FPS must not be significantly reduced.
  Test2,
   * Run on others platform, ADL/TGL/CML/CFL/KBL.
   * Use monitoring tool(e.g. s-tui) and stress-ng to verify if the machine 
runs normally.

  [Where problems could occur]
   * better support for Passive Policy. currently passive policy 1 is supported 
and it should have a bug if the machine only enable pssive policy 2.

  ~~~
  I got a new game and started playing it
  It would run at over 100 FPS solidly some of the time and then cyclically dip 
down to below 20 FPS for a few minutes

  I determined that it was thermald trying to keep my GPU below 70°C
  to determine this I sudo systemctl stop thermald
  The game ran solidly and consistently with the GPU at 75°C

  This is well below the specs set by the manufacturer and perhaps
  unreasonably low for a laptop

  But more importantly I was given no indication this was happening. I
  had to sleuth it out myself.

  Perhaps it is impossible to determine good defaults for all hardware,
  I don't know. However without an indication that this is happening
  there will be a lot of people with a mysteriously broken experience.
  This was extremely difficult for me to find and I had several friend
  who are experts on linux gaming and video drivers trying to track this
  down. I discovered it by luck and perseverance.

  This absolutely needs some sort of indication and hopefully a way to
  remedy it from the GUI. ideally it would set thermal limits that are
  more in line with what the device is designed for and not a
  conservative default if at all possible.

  ProblemType: Bug
  DistroRelease: Ubuntu 22.04
  Package: thermald 2.4.9-1
  ProcVersionSignature: Ubuntu 5.15.0-40.43-generic 5.15.35
  Uname: Linux 5.15.0-40-generic x86_64
  NonfreeKernelModules: nvidia_modeset nvidia
  ApportVersion: 2.20.11-0ubuntu82.1
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CurrentDesktop: XFCE
  Date: Fri Jul  8 16:08:55 2022
  InstallationDate: Installed on 2020-10-19 (626 days ago)
  InstallationMedia: Xubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 
(20200731)
  SourcePackage: thermald
  UpgradeStatus: Upgraded to jammy on 2022-06-17 (20 days ago)

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