Messages in this thread | | | Date | Fri, 28 Jul 2023 21:43:22 +0200 | Subject | Re: Fwd: XPS 17 9730 runs significantly warmer on Kernel 6.5-rc3 compared to Kernel 6.4.3 | From | Thorsten Leemhuis <> |
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On 28.07.23 20:13, Goran Brkuljan wrote: > Hi Everyone,
Please don't sent HTML mail to Linux kernel lists, it often will be rejected.
> Goran: On Tuesday, I asked you to perform bisection. Any update on it? > > > Sorry for the delayed response. I wasn't able to do git bisection as I > was quite busy this week. > > However, I am no longer convinced that there is a kernel related issue. > I reinstalled both kernels and now I get consistent results between two, > and they both return higher values. > Now on both kernels, core20 spikes to +100.0°C and it stays there for > the duration of the test. Other cores are going from 80-95°C. > > Note that I used the mainline kernel installer for handling installation.
FWIW, I (and likely many others that read this) have no idea what (distro specifc?) tool you are talking about. But I guess that doesn't matter. :-D
> I would close the issue as tests and behaviour don't suggest significant > differences between kernel versions.
Okydo, thx for the update.
#regzbot resolve: notabug: seems everything is working fine
Ciao, Thorsten
> On Fri, Jul 28, 2023 at 3:42 PM Thorsten Leemhuis > <regressions@leemhuis.info <mailto:regressions@leemhuis.info>> wrote: > > [CCing Thermal maintainer Rafael, maybe he can help guide us] > > Hi Bagas and everyone! > > On 27.07.23 16:24, Bagas Sanjaya wrote: > > > > I notice a regression report on Bugzilla [1]. > > Bagas, it looks like you forwarded this to the maintainers of > "THERMAL/CPU_COOLING"; I think "THERMAL" would have been the way better > entry in MAINTAINERS, as many (all?) of the former are Linaro employees > and thus primarily care about ARM based devices. That's why I CCed > Rafael. > > > Quoting from it: > > > >> On my new XPS 17 9730 laptop, I recently installed the Kernel > 6.5-rc3. I noticed, however, that during its operation, the laptop > was getting significantly warmer than before. I did some analysis > using the 'stress' tool to measure and compare the difference in CPU > temperatures between Kernel 6.4.3 and Kernel 6.5-rc3. Here are my > results: > > One thought: I wonder if there something wrong now or was there > something wrong earlier that was fixed to unleash the full performance > potential of the device. That 100°C there sounds like it's the latter > case, as that's the TJUNCTION temp for that processor. But would be good > to confirm from someone that knows better how hot such processors are > allowed to get these days. > > Ciao, Thorsten > > >> OS: Ubuntu 23.10 > >> CPU: i7-13700H > >> > >> kernel 6.4.3: > >> > > > >> Initial CPU temperature: > >> coretemp-isa-0000 > >> Core 0: +47.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 4: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 8: +46.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 12: +46.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 16: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 20: +44.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 24: +44.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 25: +44.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 26: +44.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 27: +44.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 28: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 29: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 30: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 31: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Stressing CPU for 30 seconds... > >> stress: info: [4858] dispatching hogs: 14 cpu, 0 io, 0 vm, 0 hdd > >> stress: info: [4858] successful run completed in 30s > >> CPU temperature immediately after stress test: > >> coretemp-isa-0000 > >> Core 0: +67.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 4: +76.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 8: +69.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 12: +77.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 16: +69.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 20: +76.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 24: +68.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 25: +68.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 26: +68.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 27: +68.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 28: +71.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 29: +71.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 30: +71.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 31: +71.0°C (high = +100.0°C, crit = +100.0°C) > >> Test ended at: Tue Jul 25 01:10:16 PM CEST 2023 > >> > >> > >> kernel 6.5-rc-3: > >> > >> Initial CPU temperature: > >> coretemp-isa-0000 > >> Core 0: +46.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 4: +46.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 8: +46.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 12: +46.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 16: +44.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 20: +44.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 24: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 25: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 26: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 27: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 28: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 29: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 30: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 31: +45.0°C (high = +100.0°C, crit = +100.0°C) > >> Stressing CPU for 30 seconds... > >> stress: info: [11146] dispatching hogs: 14 cpu, 0 io, 0 vm, 0 hdd > >> stress: info: [11146] successful run completed in 30s > >> CPU temperature immediately after stress test: > >> coretemp-isa-0000 > >> Core 0: +84.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 4: +97.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 8: +87.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 12: +100.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 16: +86.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 20: +99.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 24: +83.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 25: +83.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 26: +83.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 27: +83.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 28: +89.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 29: +89.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 30: +89.0°C (high = +100.0°C, crit = +100.0°C) > >> Core 31: +89.0°C (high = +100.0°C, crit = +100.0°C) > >> Test ended at: Tue Jul 25 01:05:42 PM CEST 2023 > >> > >> I tested few times with different setup and CPU temp on 6.5-rc3 > is always higher especially when stressing with fewer cores. > > > > See Bugzilla for the full thread. > > > > Goran: On Tuesday, I asked you to perform bisection. Any update on it? > > > > Anyway, I'm adding this regression to regzbot: > > > > #regzbot introduced: v6.4..v6.5-rc3 > https://bugzilla.kernel.org/show_bug.cgi?id=217703 > <https://bugzilla.kernel.org/show_bug.cgi?id=217703> > > #regzbot title: significant temperature increase on XPS 17 9730 > > > > Thanks. > > > > [1]: https://bugzilla.kernel.org/show_bug.cgi?id=217703 > <https://bugzilla.kernel.org/show_bug.cgi?id=217703> > > >
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