Re: [QUESTION] kernel/Kconfig.hz: outdated help texts?
From: Nathan Chancellor
Date: Fri Apr 24 2026 - 14:30:19 EST
On Fri, Apr 24, 2026 at 10:18:44AM +0200, torvic9@xxxxxxxxxxx wrote:
> Hello,
>
> I noticed that the help text in kernel/Kconfig.hz has barely changed since
> configurable frequency of the timer was introduced in 2005.
>
> Are these help texts still accurate 21 years later?
>
> We have e.g.:
>
> "250 Hz is a good compromise choice allowing server performance
> while also showing good interactive responsiveness even
> on SMP and NUMA systems. If you are going to be using NTSC video
> or multimedia, select 300 Hz instead."
>
> Is that NTSC/PAL thing still relevant today, in times of high resolution timers,
> modern graphics cards, Freesync and high-refresh 4K monitors with 144 Hz?
>
> Cheers,
>
> Tor Vic
I think this message would be better directed at the timekeeping folks
(now CC'd), rather than Kbuild/Kconfig.
Cheers,
Nathan