linux-kernel - Re: Linux 6.10-rc1

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Date: Fri, 14 Jun 2024 22:24:13 +0200
From: Pavel Machek <pavel@....cz>
To: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Dave Airlie <airlied@...il.com>,
	Jani Nikula <jani.nikula@...ux.intel.com>,
	Rafael Wysocki <rafael@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	dri-devel <dri-devel@...ts.freedesktop.org>
Subject: Re: Linux 6.10-rc1

Hi!

> > Let's bring in the actual gpu people.. Dave/Jani/others - does any of
> > this sound familiar? Pavel says things have gotten much slower in
> > 6.10: "something was very wrong with the performance, likely to do
> > with graphics"
> 
> Actually, maybe it's not graphics at all. Rafael just sent me a pull
> request that fixes a "turbo is disabled at boot, but magically enabled
> at runtime by firmware" issue.
> 
> The 6.10-rc1 kernel would notice that turbo was disabled, and stopped
> noticing that it magically got re-enabled.
> 
> Pavel, that was with a very different laptop, but who knows... That
> would match the "laptop is much slower" thing.
> 
> So current -git might be worth checking.

Is that:

commit 0cac73eb3875f6ecb6105e533218dba1868d04c9
Merge: 94df82fe5bfd 350cbb5d2f67
Author: Linus Torvalds <torvalds@...ux-foundation.org>
Date:   Fri Jun 14 09:52:51 2024 -0700

    Merge tag 'pm-6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
    
    Pull power management fix from Rafael Wysocki:
     "Restore the behavior of the no_turbo sysfs attribute in the
      intel_pstate driver which allowed users to make the driver start using
      turbo P-states if they have been enabled on the fly by the firmware
      after OS initialization (Rafael Wysocki)"
    
    * tag 'pm-6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
      cpufreq: intel_pstate: Check turbo_is_disabled() in store_no_turbo()


? I don't think I tweaking no_turbo in the sysfs.

But the thermal stuff looks important:

commit cee84c0b003f2e0f486f200a72eca2bcdb3a49a7
Merge: d20f6b3d747c b6846826982b
Author: Linus Torvalds <torvalds@...ux-foundation.org>
Date:   Fri Jun 14 09:28:56 2024 -0700

    Merge tag 'thermal-6.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

So I guess I'll have to try again.

Thanks and best regards,
							Pavel

-- 
People of Russia, stop Putin before his war on Ukraine escalates.

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