[Bug 292615] cpufreq changes causes AMD 4750U to run 11x slower

From: <bugzilla-noreply_at_freebsd.org>
Date: Tue, 27 Jan 2026 06:58:47 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=292615

Martin Cracauer <cracauer@cons.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #267461|0                           |1
        is obsolete|                            |

--- Comment #34 from Martin Cracauer <cracauer@cons.org> ---
Created attachment 267534
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=267534&action=edit
output from latest patch

for val in 0 10 25 37 50 75 100 125 ; do
    for file in `shellsupport -c 0 15` ; do
        sudo sysctl dev.hwpstate_amd.$file.epp=$val
    done
    for file in `shellsupport -c 0 15` ; do
        sudo sysctl debug.hwpstate_amd$file
    done
    #dmesg | tail
done

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