Linux Kernel 6.6 LTS CPU regression on i7 Alderlake

You have made a Geekbench benchmark and your single core performance on an i7-13700H on 6.6 LTS kernel is worse than my single code performance on an i7-12700H on 6.1 LTS kernel.
Don’t you think it is a regression?

I think this is more an issue of the hybrid concept … and situation will improve … please remember that Manjaro does not fix upstream issues … if you have serious problem relating to how the CPU performs - I suggest you use the kernel which provides the best for your usecase.

Other than that - I am more pragmatic

:man_shrugging:

At least you can use linux61 - Arch Linux users is limited to current stable or latest LTS.

Gaming relation i don’t see a difference between Kernel 6.1 and 6.6

But if you want to still use Kernel 6.6 and since your Cores using low Mhz, you may want to adjust the coreclock in process governor?

I’m using this settings right now, on my skylake (light OC), but i have no clue if there is a clock difference between your P-Cores and E-Cores:

sudo nano /etc/default/cpupower

# Define CPUs governor
# valid governors: ondemand, performance, powersave, conservative, userspace.
governor='performance'

# Limit frequency range
# Valid suffixes: Hz, kHz (default), MHz, GHz, THz
min_freq="4.50GHz"
max_freq="4.50GHz"

systemctl enable cpupower.service

Do this on your own risk. Its just a hint from my side.

this is not skylake and intel-pstate

this more complex since hybrid cpu P-core and E-core appears ( please reads links ) ,

also be careful with performance mode for thin laptops , they will heat more and uses idle more … only for heating

try to check thispoint in 6.1 LTS and 6.6 LTS

perf stat perf bench internals synthesize

Im aware about that…

Of course its not skylake, im using skylake and i only posted my governor settings… thats it.

Is Process governor incompatible to Alderlake and higher?

Downgrading BIOS and enabling intel_pstate (by removing intel_pstate=disable in /etc/default/grub) did solve the performance regression.

Here is the link for this BIOS (only for Executive 14 and 16 with Intel i7-12700H)
Link: https://slimbook.es/storage2/docs/Executive14_Intel12thH_BIOSN105GRU05_EC145.00.zip

I thank everyone who was supporting me (or at least tried)!

inxi -Fza

System:
  Kernel: 6.6.19-1-MANJARO arch: x86_64 bits: 64 compiler: gcc v: 13.2.1
    clocksource: tsc avail: acpi_pm
    parameters: BOOT_IMAGE=/boot/vmlinuz-6.6-x86_64
    root=UUID=8d170068-3bdc-4276-8e96-1c83d80cf839 rw quiet splash
    udev.log_priority=3 nvidia-drm.modeset=1
  Desktop: GNOME v: 45.4 tk: GTK v: 3.24.41 wm: gnome-shell
    tools: gsd-screensaver-proxy dm: GDM v: 45.0.1 Distro: Manjaro
    base: Arch Linux
Machine:
  Type: Laptop System: SLIMBOOK product: Executive v: Standard
    serial: <superuser required>
  Mobo: SLIMBOOK model: Executive v: Standard serial: <superuser required>
    part-nu: 0001 uuid: <superuser required> UEFI: American Megatrends LLC.
    v: N.1.05GRU05 date: 10/20/2022
Battery:
  ID-1: BAT0 charge: 65.7 Wh (80.0%) condition: 82.1/82.1 Wh (100.0%)
    volts: 15.8 min: 15.5 model: standard type: Li-ion serial: <filter>
    status: not charging
  Device-1: hidpp_battery_0 model: Logitech Wireless Mobile Mouse MX
    Anywhere 2S serial: <filter> charge: 55% (should be ignored)
    rechargeable: yes status: discharging
CPU:
  Info: model: 12th Gen Intel Core i7-12700H bits: 64 type: MST AMCP
    arch: Alder Lake gen: core 12 level: v3 note: check built: 2021+
    process: Intel 7 (10nm ESF) family: 6 model-id: 0x9A (154) stepping: 3
    microcode: 0x430
  Topology: cpus: 1x cores: 14 mt: 6 tpc: 2 st: 8 threads: 20 smt: enabled
    cache: L1: 1.2 MiB desc: d-8x32 KiB, 6x48 KiB; i-6x32 KiB, 8x64 KiB
    L2: 11.5 MiB desc: 6x1.2 MiB, 2x2 MiB L3: 24 MiB desc: 1x24 MiB
  Speed (MHz): avg: 484 high: 1671 min/max: 400/4600:4700:3500 scaling:
    driver: intel_pstate governor: powersave cores: 1: 400 2: 400 3: 400 4: 400
    5: 400 6: 400 7: 825 8: 400 9: 400 10: 400 11: 400 12: 400 13: 400 14: 400
    15: 1671 16: 400 17: 400 18: 400 19: 400 20: 400 bogomips: 107560
  Flags: avx avx2 ht lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx
  Vulnerabilities:
  Type: gather_data_sampling status: Not affected
  Type: itlb_multihit status: Not affected
  Type: l1tf status: Not affected
  Type: mds status: Not affected
  Type: meltdown status: Not affected
  Type: mmio_stale_data status: Not affected
  Type: retbleed status: Not affected
  Type: spec_rstack_overflow status: Not affected
  Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via
    prctl
  Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer
    sanitization
  Type: spectre_v2 mitigation: Enhanced / Automatic IBRS, IBPB:
    conditional, RSB filling, PBRSB-eIBRS: SW sequence
  Type: srbds status: Not affected
  Type: tsx_async_abort status: Not affected
Graphics:
  Device-1: Intel Alder Lake-P GT2 [Iris Xe Graphics]
    vendor: Tongfang Hongkong driver: i915 v: kernel arch: Gen-12.2
    process: Intel 10nm built: 2021-22+ ports: active: HDMI-A-1,eDP-1
    empty: DP-1, DP-2, DP-3, DP-4 bus-ID: 00:02.0 chip-ID: 8086:46a6
    class-ID: 0300
  Device-2: NVIDIA GA107M [GeForce RTX 3050 Ti Mobile]
    vendor: Tongfang Hongkong driver: nvidia v: 550.54.14
    alternate: nouveau,nvidia_drm non-free: 545.xx+ status: current (as of
    2024-02; EOL~2026-12-xx) arch: Ampere code: GAxxx process: TSMC n7 (7nm)
    built: 2020-2023 pcie: gen: 1 speed: 2.5 GT/s lanes: 4 link-max: gen: 4
    speed: 16 GT/s lanes: 16 bus-ID: 01:00.0 chip-ID: 10de:25a0 class-ID: 0302
  Device-3: Chicony FHD Webcam driver: uvcvideo type: USB rev: 2.0
    speed: 480 Mb/s lanes: 1 mode: 2.0 bus-ID: 3-6:4 chip-ID: 04f2:b75c
    class-ID: 0e02 serial: <filter>
  Display: wayland server: X.org v: 1.21.1.11 with: Xwayland v: 23.2.4
    compositor: gnome-shell driver: X: loaded: modesetting unloaded: nvidia
    alternate: fbdev,nouveau,nv,vesa dri: iris gpu: i915 display-ID: 0
  Monitor-1: HDMI-A-1 model: Asus VS247 serial: <filter> built: 2015
    res: 1920x1080 dpi: 94 gamma: 1.2 size: 521x293mm (20.51x11.54")
    diag: 598mm (23.5") ratio: 16:9 modes: max: 1920x1080 min: 720x400
  Monitor-2: eDP-1 model: BOE Display 0x0aca built: 2021 res: 2560x1600
    dpi: 189 gamma: 1.2 size: 344x215mm (13.54x8.46") diag: 406mm (16")
    ratio: 16:10 modes: 2560x1600
  API: EGL v: 1.5 hw: drv: intel iris drv: nvidia platforms: device: 0
    drv: nvidia device: 2 drv: iris device: 3 drv: swrast gbm: drv: nvidia
    surfaceless: drv: nvidia wayland: drv: iris x11: drv: iris
    inactive: device-1
  API: OpenGL v: 4.6.0 compat-v: 4.5 vendor: intel mesa v: 24.0.2-manjaro1.1
    glx-v: 1.4 direct-render: yes renderer: Mesa Intel Graphics (ADL GT2)
    device-ID: 8086:46a6 memory: 30.36 GiB unified: yes display-ID: :0.0
  API: Vulkan v: 1.3.279 layers: 1 device: 0 type: discrete-gpu name: NVIDIA
    GeForce RTX 3050 Ti Laptop GPU driver: nvidia v: 550.54.14
    device-ID: 10de:25a0 surfaces: xcb,xlib,wayland
Audio:
  Device-1: Intel Alder Lake PCH-P High Definition Audio
    vendor: Tongfang Hongkong driver: snd_hda_intel v: kernel
    alternate: snd_sof_pci_intel_tgl bus-ID: 00:1f.3 chip-ID: 8086:51c8
    class-ID: 0403
  Device-2: JMTek LLC. ME6S driver: hid-generic,snd-usb-audio,usbhid
    type: USB rev: 1.1 speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 3-3.2:5
    chip-ID: 0c76:8888 class-ID: 0300
  API: ALSA v: k6.6.19-1-MANJARO status: kernel-api with: aoss
    type: oss-emulator tools: alsactl,alsamixer,amixer
  Server-1: sndiod v: N/A status: off tools: aucat,midicat,sndioctl
  Server-2: PipeWire v: 1.0.3 status: active with: 1: pipewire-pulse
    status: active 2: pipewire-media-session status: active 3: pipewire-alsa
    type: plugin 4: pw-jack type: plugin tools: pactl,pw-cat,pw-cli
Network:
  Device-1: Intel Alder Lake-P PCH CNVi WiFi driver: iwlwifi v: kernel
    bus-ID: 00:14.3 chip-ID: 8086:51f0 class-ID: 0280
  IF: wlo1 state: up mac: <filter>
  IF-ID-1: br-4e19c3a9546f state: down mac: <filter>
  IF-ID-2: br-5a95d78337e6 state: down mac: <filter>
  IF-ID-3: br-65ff07f478ee state: down mac: <filter>
  IF-ID-4: br-7fce34ee6e2a state: down mac: <filter>
  IF-ID-5: br-848f33031455 state: down mac: <filter>
  IF-ID-6: docker0 state: down mac: <filter>
  IF-ID-7: virbr0 state: down mac: <filter>
  Info: services: NetworkManager, systemd-timesyncd, wpa_supplicant
Bluetooth:
  Device-1: Intel AX201 Bluetooth driver: btusb v: 0.8 type: USB rev: 2.0
    speed: 12 Mb/s lanes: 1 mode: 1.1 bus-ID: 3-10:6 chip-ID: 8087:0026
    class-ID: e001
  Report: rfkill ID: hci0 rfk-id: 0 state: up address: see --recommends
Drives:
  Local Storage: total: 2.73 TiB used: 1.84 TiB (67.3%)
  SMART Message: Required tool smartctl not installed. Check --recommends
  ID-1: /dev/nvme0n1 maj-min: 259:2 vendor: SanDisk model: Ultra 3D NVMe 2TB
    size: 1.82 TiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
    lanes: 4 tech: SSD serial: <filter> fw-rev: 234140WD temp: 33.9 C
    scheme: GPT
  ID-2: /dev/nvme1n1 maj-min: 259:0 vendor: SanDisk model: Ultra 3D NVMe 1TB
    size: 931.51 GiB block-size: physical: 512 B logical: 512 B speed: 31.6 Gb/s
    lanes: 4 tech: SSD serial: <filter> fw-rev: 234100WD temp: 31.9 C
    scheme: MBR
Partition:
  ID-1: / raw-size: 1.82 TiB size: 1.79 TiB (98.37%) used: 1.4 TiB (78.5%)
    fs: ext4 dev: /dev/nvme0n1p2 maj-min: 259:4
  ID-2: /boot/efi raw-size: 300 MiB size: 299.4 MiB (99.80%)
    used: 288 KiB (0.1%) fs: vfat dev: /dev/nvme0n1p1 maj-min: 259:3
Swap:
  Alert: No swap data was found.
Sensors:
  System Temperatures: cpu: 53.0 C mobo: N/A
  Fan Speeds (rpm): N/A
Info:
  Memory: total: 32 GiB note: est. available: 31.09 GiB used: 9.97 GiB (32.1%)
  Processes: 489 Power: uptime: 1h 55m states: freeze,mem,disk
    suspend: s2idle avail: deep wakeups: 0 hibernate: platform avail: shutdown,
    reboot, suspend, test_resume image: 12.38 GiB services: gsd-power,
    power-profiles-daemon, upowerd Init: systemd v: 255 default: graphical
    tool: systemctl
  Packages: pm: pacman pkgs: 1814 libs: 417 tools: gnome-software,pamac
    pm: flatpak pkgs: 0 Compilers: clang: 16.0.6 gcc: 13.2.1 alt: 12 Shell: Zsh
    v: 5.9 running-in: gnome-terminal inxi: 3.3.33

So it was a firmware issue. I suggest reporting this to Slimbook so that they are aware of it and can hopefully fix it in a future BIOS release.

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