DOS ain't dead

ACPI tools 1.3 (Announce)

posted by Laaca , Czech republic, 16.06.2026, 16:27

> Hi Thanks for updating ACPI tools!
>
> > version 1.3 I added ... throttling the processor ... slows down the CPU.
> > Unfortunately, the throttling does not work on every machine (with ACPI)
> > but only with older ones which have the processor block defined in the
> _PR
> > block and not in the _SB block.
>
> Well, does it work for *large* blocks of ACPI data? Then it still should
> work on machines where FDAPM with SPEEDn option cannot yet throttle

Yes, "large" DSDT block of ACPI/AML data is not problem as it is processed part-by-part.
Problem is when \_PR definition is not in DSST but in some of the SSDTs and mainly when the processor definition is not in \_PR but in \_SB


Nowever, as you probably know, the ultimate slowdown program for DOS is CPUSPD
https://www.vogons.org/viewtopic.php?t=74359
https://www.vogons.org/viewtopic.php?t=74359

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DOS-u-akbar!

Complete thread:

• ACPI tools 1.3 - Laaca, 16.06.2026, 00:28 (Announce)
  • ACPI tools 1.3 - mceric, 16.06.2026, 01:14
    • ACPI tools 1.3 - Laaca, 16.06.2026, 16:27
      • ACPI tools 1.3 - RayeR, 16.06.2026, 19:14
        • ACPI tools 1.3 - Laaca, 16.06.2026, 22:05
        • ACPI tools 1.3 - Zyzzle, 16.06.2026, 22:59
  • ACPI tools 1.3b - Laaca, 16.06.2026, 23:04
    • ACPI tools 1.3b - RayeR, 18.06.2026, 06:53
      • ACPI tools 1.3c - Laaca, 20.06.2026, 22:55