Re: [BUG] intel_pstate: CPU frequencies miscalculated/incorrectly detected on Arrow Lake hardware

[srinivas pandruvada <srinivas.pandruvada@linux.intel.com>]

Hi Aaron,

On Sun, 2025-12-14 at 18:45 -0600, Aaron Rainbolt wrote:
> Hi Srinivas:
> 
> We do not have the X580WNT-G available at the moment. It was included
> to show the wide sample of devices showing this bug but has left the
> office for now. However, we do have a bench model of the X560WNR-G
> always available, so I have included results for that model instead.
> The issues present are the same. I hope that's ok.
> 
> > To check, I need dump of:
> > m=$(getconf _NPROCESSORS_ONLN); for ((i=0; i<m; i++)); do echo
> > CPU$i;
> > sudo rdmsr -p $i 0x771;  sudo rdmsr -p $i 0x774; done
> 
> Here are the results of running the above script on the X560WNR-G on
> the mainline kernel 6.18.0-061800-generic installed from
> https://kernel.ubuntu.com/mainline/v6.18. The results are EXACTLY the
> same as the 6.14 kernel:
> 
>   CPU0
>   11a203d
>   40003d0d

This data is not consistent with the reported frequencies M-TEST
frequencies.
I need to get hold of such internal system with the same processor and
check what is reported.

Thanks,
Srinivas



>   CPU1
>   11a203d
>   40003d0d
>   CPU2
>   11a203f
>   40003f0e
>   CPU3
>   11a203f
>   40003f0e
>   CPU4
>   11a203d
>   40003d0d
>   CPU5
>   11a203d
>   40003d0d
>   CPU6
>   11a203d
>   40003d0d
>   CPU7
>   11a203d
>   40003d0d
>   CPU8
>   10f152e
>   40002e0c
>   CPU9
>   10f152e
>   40002e0c
>   CPU10
>   10f152e
>   40002e0c
>   CPU11
>   10f152e
>   40002e0c
>   CPU12
>   10f152e
>   40002e0c
>   CPU13
>   10f152e
>   40002e0c
>   CPU14
>   10f152e
>   40002e0c
>   CPU15
>   10f152e
>   40002e0c
>   CPU16
>   10f152e
>   40002e0a
>   CPU17
>   10f152e
>   40002e0a
>   CPU18
>   10f152e
>   40002e0c
>   CPU19
>   10f152e
>   40002e0c
>   CPU20
>   10f152e
>   40002e0c
>   CPU21
>   10f152e
>   40002e0c
>   CPU22
>   10f152e
>   40002e0c
>   CPU23
>   10f152e
>   40002e0c
> 
> > What command you to report " M-Test  . Id"?
> 
> We wrote the attached `check-intel-cpu-freq` script to find this
> value.
> It scans P- and E-core groups and finds the maximum current frequency
> and what core provided it. That value is read from the sysfs file
> found
> for each core like so:
> `/sys/devices/system/cpu/cpufreq/policy7/scaling_cur_freq`. This
> script
> scan each group 200 times, so there are 200 x 8 = 1600 P-core samples
> and 200 x 16 = 3200 E-core samples. The script directs one to use
> Geekbench5 to stress the cores while it is running. Here are the
> results with the mainline 6.18 kernel. The Assesment is identical
> with
> the results we got with the 6.14 and 6.18-rc7 kernels:
> 
>   ## Clevo | X560WNR-G | Ultra 9 275HX | kernel 6.18.0-061800-generic
> (Mainline)
> 
>   Type |Turbo|B-Claim . Id|B-Spec |M-Claim . Id|M-Spec |M-Test  . Id
>   -----|-----|------------|-------|------------|-------|------------
>   P    |off  |2000000 . 07|2700000|2000000 . 07|2700000|2700027 . 01
>   P    |ON   |2000000 . 07|2700000|3900000 . 03|5400000|5400000 . 03
>   E    |off  |2100000 . 17|2100000|2100000 . 17|2100000|2133426 . 11
>   E    |ON   |2100000 . 17|2100000|4600000 . 17|4600000|4694736 . 15
> 
>   ## Assessment
> 
>   1. The E-cores are all expressed as expected
>   2. The P-cores show base freq claimed (B-Claim) at 2000000, but
> specified
>      (B-Spec) and measured (M-Test) are 2700000.
>   3. The P-cores show max freq claimed (M-Claim) at 3900000, but
> specified
>      (M-Spec) and measured (M-Test) are 5400000.
> 
>   ## Key
> 
>   Column  | Values | Purpose
>   --------|--------|---------
>   Type    | P|E    | The subset of cores this row applied to.
>           |        |   For example, `P` means `all P-cores`.
>   Turbo   | off|ON | The turbo setting of this core subset.
>   B-Claim | int Hz | The max `base_frequency` value of this core
> subset.
>        Id | int    | The core id that provided the Base-Claim value.
>   B-Spec  | int Hz | Intel SPEC'D BASE freq for this CPU's core Type.
>   M-Claim | int Hz | The max `cpuinfo_max_freq` value of this core
> subset.
>        Id | int    | The core id that provided the Max-Claim value.
>   M-Spec  | int Hz | Intel SPEC'D MAX freq for this CPU's core Type.
>   M-Test  | int Hz | The max `scaling_cur_freq` value of this core
> subset.
>           |        |   The entire core subset is sampled 200x.
>        Id | int    | The core id that provided the Max-Test value.
> 
> 
> > One addition, to show measured freq, use
> > sudo turbostat --show frequency
> 
> We couldn't easily run this on the 6.18 mainline kernel because the
> linux-tools package in Ubuntu is not available. However, we ran this
> with the 6.14 kernel, which showed the same P-core frequency issues
> in
> our testing. When we continued to run and pushed the cores, the
> Bzy_Mhz
> values approached the theoretical maximums. Let me know if you
> require
> more than this:
> 
>   X560WNR-G $ sudo turbostat --show frequency
>   turbostat version 2025.02.02 - Len Brown <lenb@kernel.org>
>   Kernel command line: BOOT_IMAGE=/@boot/vmlinuz-6.14.0-34-kfocus
> root=UUID=09e835be-39d5-42fa-8b81-39f5a40f98de ro rootflags=subvol=@
> quiet cryptdevice=UUID=2cd8437a-4d06-4050-bf06-247f233d7d76:luks-
> 2cd8437a-4d06-4050-bf06-247f233d7d76 root=/dev/mapper/luks-2cd8437a-
> 4d06-4050-bf06-247f233d7d76 splash modprobe.blacklist=nouveau
> nouveau.modeset=0 modprobe.blacklist=ucsi_acpi vt.handoff=7
>   CPUID(0): GenuineIntel 0x23 CPUID levels
>   CPUID(1): family:model:stepping 0x6:c6:2 (6:198:2) microcode 0x119
>   CPUID(0x80000000): max_extended_levels: 0x80000008
>   CPUID(1): SSE3 MONITOR SMX EIST TM2 TSC MSR ACPI-TM HT TM
>   CPUID(6): APERF, TURBO, DTS, PTM, HWP, HWPnotify, HWPwindow,
> HWPepp, HWPpkg, EPB
>   cpu0: MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT PREFETCH
> TURBO)
>   CPUID(7): No-SGX Hybrid
>   CPUID(0x15): eax_crystal: 2 ebx_tsc: 160 ecx_crystal_hz: 38400000
>   TSC: 3072 MHz (38400000 Hz * 160 / 2 / 1000000)
>   CPUID(0x16): base_mhz: 3100 max_mhz: 4600 bus_mhz: 100
>   cpu0: MSR_PLATFORM_INFO: 0x804083cf1811f00
>   8 * 100.0 = 800.0 MHz max efficiency frequency
>   31 * 100.0 = 3100.0 MHz base frequency
>   cpu0: MSR_TURBO_RATIO_LIMIT: 0x3434343434343636
>   52 * 100.0 = 5200.0 MHz max turbo 8 active cores
>   52 * 100.0 = 5200.0 MHz max turbo 7 active cores
>   52 * 100.0 = 5200.0 MHz max turbo 6 active cores
>   52 * 100.0 = 5200.0 MHz max turbo 5 active cores
>   52 * 100.0 = 5200.0 MHz max turbo 4 active cores
>   52 * 100.0 = 5200.0 MHz max turbo 3 active cores
>   54 * 100.0 = 5400.0 MHz max turbo 2 active cores
>   54 * 100.0 = 5400.0 MHz max turbo 1 active cores
>   cpu0: MSR_SECONDARY_TURBO_RATIO_LIMIT: 0x2e2e2e2e2e2e2e2e
>   46 * 100.0 = 4600.0 MHz max turbo 8 active cores
>   46 * 100.0 = 4600.0 MHz max turbo 7 active cores
>   46 * 100.0 = 4600.0 MHz max turbo 6 active cores
>   46 * 100.0 = 4600.0 MHz max turbo 5 active cores
>   46 * 100.0 = 4600.0 MHz max turbo 4 active cores
>   46 * 100.0 = 4600.0 MHz max turbo 3 active cores
>   46 * 100.0 = 4600.0 MHz max turbo 2 active cores
>   46 * 100.0 = 4600.0 MHz max turbo 1 active cores
>   cpu0: MSR_CONFIG_TDP_NOMINAL: 0x0000001b (base_ratio=27)
>   cpu0: MSR_CONFIG_TDP_LEVEL_1: 0x00110168 (PKG_MIN_PWR_LVL1=0
> PKG_MAX_PWR_LVL1=0 LVL1_RATIO=17 PKG_TDP_LVL1=360)
>   cpu0: MSR_CONFIG_TDP_LEVEL_2: 0x001f0208 (PKG_MIN_PWR_LVL2=0
> PKG_MAX_PWR_LVL2=0 LVL2_RATIO=31 PKG_TDP_LVL2=520)
>   cpu0: MSR_CONFIG_TDP_CONTROL: 0x00000000 ( lock=0)
>   cpu0: MSR_TURBO_ACTIVATION_RATIO: 0x0000001a
> (MAX_NON_TURBO_RATIO=26 lock=0)
>   cpu0: cpufreq driver: intel_pstate
>   cpu0: cpufreq governor: powersave
>   cpufreq intel_pstate no_turbo: 0
>   cpu0: MSR_MISC_PWR_MGMT: 0x000030c2 (ENable-EIST_Coordination
> ENable-EPB DISable-OOB)
>   cpu0: MSR_PM_ENABLE: 0x00000001 (HWP)
>   cpu0: MSR_HWP_CAPABILITIES: 0x011a203d (high 61 guar 32 eff 26 low
> 1)
>   cpu0: MSR_HWP_REQUEST: 0x40003d0d (min 13 max 61 des 0 epp 0x40
> window 0x0 pkg 0x0)
>   cpu0: MSR_HWP_REQUEST_PKG: 0x8000ff01 (min 1 max 255 des 0 epp 0x80
> window 0x0)
>   cpu0: MSR_HWP_INTERRUPT: 0x00000005 (EN_Guaranteed_Perf_Change,
> Dis_Excursion_Min)
>   cpu0: MSR_HWP_STATUS: 0x00000000 (No-Guaranteed_Perf_Change, No-
> Excursion_Min)
>   cpu0: EPB: 6 (balanced)
>   cpu0: MSR_IA32_POWER_CTL: 0x00e4005f (C1E auto-promotion: ENabled)
>   cpu0: MSR_PKG_CST_CONFIG_CONTROL: 0x74008008 (UNdemote-C1, demote-
> C1, locked, pkg-cstate-limit=8 (unlimited))
>   /dev/cpu_dma_latency: 2000000000 usec (default)
>   current_driver: intel_idle
>   current_governor: menu
>   current_governor_ro: menu
>   cpu0: POLL: CPUIDLE CORE POLL IDLE
>   cpu0: C1ACPI: ACPI FFH MWAIT 0x0
>   cpu0: C2ACPI: ACPI FFH MWAIT 0x21
>   cpu0: C3ACPI: ACPI FFH MWAIT 0x60
>   cpu0: MSR_PKGC3_IRTL: 0x00000000 (NOTvalid, 0 ns)
>   cpu0: MSR_PKGC6_IRTL: 0x00000000 (NOTvalid, 0 ns)
>   cpu0: MSR_PKGC8_IRTL: 0x00000000 (NOTvalid, 0 ns)
>   cpu0: MSR_PKGC10_IRTL: 0x00000000 (NOTvalid, 0 ns)
>   Uncore Frequency package0 die0: 800 - 3800 MHz (800 - 3800 MHz)
> 1800 MHz
>   RAPL: 4766 sec. Joule Counter Range, at 55 Watts
>   cpu0: MSR_RAPL_POWER_UNIT: 0x000a0e03 (0.125000 Watts, 0.000061
> Joules, 0.000977 sec.)
>   cpu0: MSR_PKG_POWER_INFO: 0x120000000001b8 (55 W TDP, RAPL 0 - 0 W,
> 0.017578 sec.)
>   cpu0: MSR_PKG_POWER_LIMIT: 0x438500001f8640 (UNlocked)
>   cpu0: PKG Limit #1: ENabled (200.000 Watts, 32.000000 sec, clamp
> ENabled)
>   cpu0: PKG Limit #2: ENabled (160.000 Watts, 0.002441* sec, clamp
> ENabled)
>   cpu0: MSR_VR_CURRENT_CONFIG: 0x00000850
>   cpu0: PKG Limit #4: 266.000000 Watts (UNlocked)
>   cpu0: MSR_DRAM_POWER_LIMIT: 0x00000000 (UNlocked)
>   cpu0: DRAM Limit: DISabled (0.000 Watts, 0.000977 sec, clamp
> DISabled)
>   cpu0: MSR_PP0_POLICY: 0
>   cpu0: MSR_PP0_POWER_LIMIT: 0x00000000 (UNlocked)
>   cpu0: Cores Limit: DISabled (0.000 Watts, 0.000977 sec, clamp
> DISabled)
>   cpu0: MSR_PP1_POLICY: 0
>   cpu0: MSR_PP1_POWER_LIMIT: 0x00000000 (UNlocked)
>   cpu0: GFX Limit: DISabled (0.000 Watts, 0.000977 sec, clamp
> DISabled)
>   cpu0: MSR_IA32_TEMPERATURE_TARGET: 0x0d690000 (92 C) (105 default -
> 13 offset)
>   cpu0: MSR_IA32_PACKAGE_THERM_STATUS: 0x88320002 (55 C)
>   cpu0: MSR_IA32_PACKAGE_THERM_INTERRUPT: 0x02000003 (105 C, 105 C)
>   cpu0: MSR_MISC_FEATURE_CONTROL: 0x00000000 (L2-Prefetch L2-
> Prefetch-pair L1-Prefetch L1-IP-Prefetch)
>   Avg_MHz Busy%   Bzy_MHz TSC_MHz GFXMHz  GFXAMHz SAMMHz  SAMAMHz
> UncMHz
>   3       0.20    1594    3071    550     550     1300    1300   
> 1800
>   2       0.11    1945    3072    550     550     1300    1300   
> 1800
>   10      0.53    1818    3072
>   1       0.06    1380    3072
>   2       0.15    1416    3072
>   1       0.09    1315    3072
>   5       0.33    1410    3072
>   6       0.45    1338    3072
>   2       0.12    1531    3072
>   2       0.15    1471    3072
>   1       0.08    1375    3072
>   4       0.17    2113    3072
>   3       0.16    2085    3072
>   1       0.04    2058    3072
>   5       0.23    2016    3072
>   14      0.98    1410    3072
>   1       0.04    1422    3072
>   1       0.10    1435    3072
>   2       0.11    1471    3072
>   2       0.17    1418    3072
>   6       0.33    1684    3072
>   2       0.13    1465    3072
>   1       0.08    1714    3072
>   0       0.02    2270    3072
>   3       0.13    1969    3072
> 
> To keep everything in one place, here is the acpi_cppc report you
> requested earlier also for the X560WNR-G using the 6.18 mainline
> kernel. This is identical again to the 6.14 kernel EXCEPT for the
> `feedback_crts` field, which appears to be dynamic.
> 
>   X560WNR-G $ grep . /sys/devices/system/cpu/cpu*/acpi_cppc/*
>  
> /sys/devices/system/cpu/cpu0/acpi_cppc/feedback_ctrs:ref:85764085462
> del:81092364612
>   /sys/devices/system/cpu/cpu0/acpi_cppc/guaranteed_perf:32
>   /sys/devices/system/cpu/cpu0/acpi_cppc/highest_perf:61
>   /sys/devices/system/cpu/cpu0/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu0/acpi_cppc/lowest_nonlinear_perf:26
>   /sys/devices/system/cpu/cpu0/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu0/acpi_cppc/nominal_freq:2700
>   /sys/devices/system/cpu/cpu0/acpi_cppc/nominal_perf:43
>   /sys/devices/system/cpu/cpu0/acpi_cppc/reference_perf:49
>  
> /sys/devices/system/cpu/cpu0/acpi_cppc/wraparound_time:18446744073709
> 551615
>  
> /sys/devices/system/cpu/cpu10/acpi_cppc/feedback_ctrs:ref:30648952280
> del:32319093196
>   /sys/devices/system/cpu/cpu10/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu10/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu10/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu10/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu10/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu10/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu10/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu10/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu10/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu11/acpi_cppc/feedback_ctrs:ref:24418501228
> del:26064639390
>   /sys/devices/system/cpu/cpu11/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu11/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu11/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu11/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu11/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu11/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu11/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu11/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu11/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu12/acpi_cppc/feedback_ctrs:ref:30772876268
> del:31630648127
>   /sys/devices/system/cpu/cpu12/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu12/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu12/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu12/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu12/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu12/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu12/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu12/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu12/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu13/acpi_cppc/feedback_ctrs:ref:32208013456
> del:33858924907
>   /sys/devices/system/cpu/cpu13/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu13/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu13/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu13/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu13/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu13/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu13/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu13/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu13/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu14/acpi_cppc/feedback_ctrs:ref:34318996648
> del:37357638199
>   /sys/devices/system/cpu/cpu14/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu14/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu14/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu14/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu14/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu14/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu14/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu14/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu14/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu15/acpi_cppc/feedback_ctrs:ref:41344894184
> del:40523832261
>   /sys/devices/system/cpu/cpu15/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu15/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu15/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu15/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu15/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu15/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu15/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu15/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu15/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu16/acpi_cppc/feedback_ctrs:ref:36965175248
> del:37144286195
>   /sys/devices/system/cpu/cpu16/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu16/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu16/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu16/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu16/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu16/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu16/acpi_cppc/nominal_perf:21
>   /sys/devices/system/cpu/cpu16/acpi_cppc/reference_perf:31
>  
> /sys/devices/system/cpu/cpu16/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu17/acpi_cppc/feedback_ctrs:ref:29796395364
> del:30507895794
>   /sys/devices/system/cpu/cpu17/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu17/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu17/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu17/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu17/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu17/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu17/acpi_cppc/nominal_perf:21
>   /sys/devices/system/cpu/cpu17/acpi_cppc/reference_perf:31
>  
> /sys/devices/system/cpu/cpu17/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu18/acpi_cppc/feedback_ctrs:ref:30008884864
> del:31394469575
>   /sys/devices/system/cpu/cpu18/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu18/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu18/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu18/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu18/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu18/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu18/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu18/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu18/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu19/acpi_cppc/feedback_ctrs:ref:33127087692
> del:36493571195
>   /sys/devices/system/cpu/cpu19/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu19/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu19/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu19/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu19/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu19/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu19/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu19/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu19/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu1/acpi_cppc/feedback_ctrs:ref:47084742987
> del:52088422560
>   /sys/devices/system/cpu/cpu1/acpi_cppc/guaranteed_perf:32
>   /sys/devices/system/cpu/cpu1/acpi_cppc/highest_perf:61
>   /sys/devices/system/cpu/cpu1/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu1/acpi_cppc/lowest_nonlinear_perf:26
>   /sys/devices/system/cpu/cpu1/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu1/acpi_cppc/nominal_freq:2700
>   /sys/devices/system/cpu/cpu1/acpi_cppc/nominal_perf:43
>   /sys/devices/system/cpu/cpu1/acpi_cppc/reference_perf:49
>  
> /sys/devices/system/cpu/cpu1/acpi_cppc/wraparound_time:18446744073709
> 551615
>  
> /sys/devices/system/cpu/cpu20/acpi_cppc/feedback_ctrs:ref:35405865204
> del:37891455176
>   /sys/devices/system/cpu/cpu20/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu20/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu20/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu20/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu20/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu20/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu20/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu20/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu20/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu21/acpi_cppc/feedback_ctrs:ref:31453151676
> del:32354440344
>   /sys/devices/system/cpu/cpu21/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu21/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu21/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu21/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu21/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu21/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu21/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu21/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu21/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu22/acpi_cppc/feedback_ctrs:ref:29395705360
> del:30249765611
>   /sys/devices/system/cpu/cpu22/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu22/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu22/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu22/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu22/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu22/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu22/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu22/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu22/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu23/acpi_cppc/feedback_ctrs:ref:34147115164
> del:34129428131
>   /sys/devices/system/cpu/cpu23/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu23/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu23/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu23/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu23/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu23/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu23/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu23/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu23/acpi_cppc/wraparound_time:1844674407370
> 9551615
>  
> /sys/devices/system/cpu/cpu2/acpi_cppc/feedback_ctrs:ref:52863482561
> del:63458169943
>   /sys/devices/system/cpu/cpu2/acpi_cppc/guaranteed_perf:32
>   /sys/devices/system/cpu/cpu2/acpi_cppc/highest_perf:63
>   /sys/devices/system/cpu/cpu2/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu2/acpi_cppc/lowest_nonlinear_perf:26
>   /sys/devices/system/cpu/cpu2/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu2/acpi_cppc/nominal_freq:2700
>   /sys/devices/system/cpu/cpu2/acpi_cppc/nominal_perf:43
>   /sys/devices/system/cpu/cpu2/acpi_cppc/reference_perf:49
>  
> /sys/devices/system/cpu/cpu2/acpi_cppc/wraparound_time:18446744073709
> 551615
>  
> /sys/devices/system/cpu/cpu3/acpi_cppc/feedback_ctrs:ref:53310134126
> del:60839001140
>   /sys/devices/system/cpu/cpu3/acpi_cppc/guaranteed_perf:32
>   /sys/devices/system/cpu/cpu3/acpi_cppc/highest_perf:63
>   /sys/devices/system/cpu/cpu3/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu3/acpi_cppc/lowest_nonlinear_perf:26
>   /sys/devices/system/cpu/cpu3/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu3/acpi_cppc/nominal_freq:2700
>   /sys/devices/system/cpu/cpu3/acpi_cppc/nominal_perf:43
>   /sys/devices/system/cpu/cpu3/acpi_cppc/reference_perf:49
>  
> /sys/devices/system/cpu/cpu3/acpi_cppc/wraparound_time:18446744073709
> 551615
>  
> /sys/devices/system/cpu/cpu4/acpi_cppc/feedback_ctrs:ref:37661765305
> del:39273578265
>   /sys/devices/system/cpu/cpu4/acpi_cppc/guaranteed_perf:32
>   /sys/devices/system/cpu/cpu4/acpi_cppc/highest_perf:61
>   /sys/devices/system/cpu/cpu4/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu4/acpi_cppc/lowest_nonlinear_perf:26
>   /sys/devices/system/cpu/cpu4/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu4/acpi_cppc/nominal_freq:2700
>   /sys/devices/system/cpu/cpu4/acpi_cppc/nominal_perf:43
>   /sys/devices/system/cpu/cpu4/acpi_cppc/reference_perf:49
>  
> /sys/devices/system/cpu/cpu4/acpi_cppc/wraparound_time:18446744073709
> 551615
>  
> /sys/devices/system/cpu/cpu5/acpi_cppc/feedback_ctrs:ref:37315012790
> del:40229366158
>   /sys/devices/system/cpu/cpu5/acpi_cppc/guaranteed_perf:32
>   /sys/devices/system/cpu/cpu5/acpi_cppc/highest_perf:61
>   /sys/devices/system/cpu/cpu5/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu5/acpi_cppc/lowest_nonlinear_perf:26
>   /sys/devices/system/cpu/cpu5/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu5/acpi_cppc/nominal_freq:2700
>   /sys/devices/system/cpu/cpu5/acpi_cppc/nominal_perf:43
>   /sys/devices/system/cpu/cpu5/acpi_cppc/reference_perf:49
>  
> /sys/devices/system/cpu/cpu5/acpi_cppc/wraparound_time:18446744073709
> 551615
>  
> /sys/devices/system/cpu/cpu6/acpi_cppc/feedback_ctrs:ref:31209054793
> del:33190454758
>   /sys/devices/system/cpu/cpu6/acpi_cppc/guaranteed_perf:32
>   /sys/devices/system/cpu/cpu6/acpi_cppc/highest_perf:61
>   /sys/devices/system/cpu/cpu6/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu6/acpi_cppc/lowest_nonlinear_perf:26
>   /sys/devices/system/cpu/cpu6/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu6/acpi_cppc/nominal_freq:2700
>   /sys/devices/system/cpu/cpu6/acpi_cppc/nominal_perf:43
>   /sys/devices/system/cpu/cpu6/acpi_cppc/reference_perf:49
>  
> /sys/devices/system/cpu/cpu6/acpi_cppc/wraparound_time:18446744073709
> 551615
>  
> /sys/devices/system/cpu/cpu7/acpi_cppc/feedback_ctrs:ref:27945691272
> del:28942342249
>   /sys/devices/system/cpu/cpu7/acpi_cppc/guaranteed_perf:32
>   /sys/devices/system/cpu/cpu7/acpi_cppc/highest_perf:61
>   /sys/devices/system/cpu/cpu7/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu7/acpi_cppc/lowest_nonlinear_perf:26
>   /sys/devices/system/cpu/cpu7/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu7/acpi_cppc/nominal_freq:2700
>   /sys/devices/system/cpu/cpu7/acpi_cppc/nominal_perf:43
>   /sys/devices/system/cpu/cpu7/acpi_cppc/reference_perf:49
>  
> /sys/devices/system/cpu/cpu7/acpi_cppc/wraparound_time:18446744073709
> 551615
>  
> /sys/devices/system/cpu/cpu8/acpi_cppc/feedback_ctrs:ref:30470288492
> del:31360721157
>   /sys/devices/system/cpu/cpu8/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu8/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu8/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu8/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu8/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu8/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu8/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu8/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu8/acpi_cppc/wraparound_time:18446744073709
> 551615
>  
> /sys/devices/system/cpu/cpu9/acpi_cppc/feedback_ctrs:ref:33008945576
> del:35214567794
>   /sys/devices/system/cpu/cpu9/acpi_cppc/guaranteed_perf:21
>   /sys/devices/system/cpu/cpu9/acpi_cppc/highest_perf:46
>   /sys/devices/system/cpu/cpu9/acpi_cppc/lowest_freq:0
>   /sys/devices/system/cpu/cpu9/acpi_cppc/lowest_nonlinear_perf:15
>   /sys/devices/system/cpu/cpu9/acpi_cppc/lowest_perf:1
>   /sys/devices/system/cpu/cpu9/acpi_cppc/nominal_freq:2100
>   /sys/devices/system/cpu/cpu9/acpi_cppc/nominal_perf:29
>   /sys/devices/system/cpu/cpu9/acpi_cppc/reference_perf:43
>  
> /sys/devices/system/cpu/cpu9/acpi_cppc/wraparound_time:18446744073709
> 551615
> 
> Thanks again,
> 
> --
> Aaron