100mV undervolt

Intel Core i5-11400 testing with a ASUS PRIME H510M-E (2201 BIOS) and ASUS NVIDIA GeForce GTX 1650 4GB on Arch rolling via the Phoronix Test Suite.

HTML result view exported from: https://openbenchmarking.org/result/2407134-NE-100MVUNDE59&export=pdf.

100mV undervoltProcessorMotherboardChipsetMemoryDiskGraphicsAudioMonitorNetworkOSKernelDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen Resolution100mV CPU undervoltIntel Core i5-11400 @ 4.40GHz (6 Cores / 12 Threads)ASUS PRIME H510M-E (2201 BIOS)Intel Tiger Lake-H16GB250GB Western Digital WD2500AAKX-0 + 128GB SAMSUNG MZ7LN128 + 500GB Samsung SSD 860 + 0GB SD/MMC/MS PROASUS NVIDIA GeForce GTX 1650 4GBRealtek ALC897HW191D + DELL S2721HSIntelArch rolling6.9.9-arch1-1 (x86_64)X Server 1.21.1.13NVIDIA 555.58.024.6.0GCC 14.1.1 20240522 + Clang 18.1.8 + LLVM 18.1.8ext42820x1440OpenBenchmarking.org- NVIDIA_drm.modeset=1 NVIDIA_drm.fbdev=1 - Transparent Huge Pages: always- Scaling Governor: intel_pstate powersave (EPP: balance_performance) - CPU Microcode: 0x5e- gather_data_sampling: Mitigation of Microcode + itlb_multihit: Not affected + l1tf: Not affected + mds: Not affected + meltdown: Not affected + mmio_stale_data: Mitigation of Clear buffers; SMT vulnerable + reg_file_data_sampling: Not affected + retbleed: Mitigation of Enhanced IBRS + spec_rstack_overflow: Not affected + spec_store_bypass: Mitigation of SSB disabled via prctl + spectre_v1: Mitigation of usercopy/swapgs barriers and __user pointer sanitization + spectre_v2: Mitigation of Enhanced / Automatic IBRS; IBPB: conditional; RSB filling; PBRSB-eIBRS: SW sequence; BHI: SW loop KVM: SW loop + srbds: Not affected + tsx_async_abort: Not affected

100mV undervoltbuild-linux-kernel: defconfigStandard ErrorStandard Deviation100mV CPU undervolt180.2011.131.09%OpenBenchmarking.org

Timed Linux Kernel Compilation

Build: defconfig

OpenBenchmarking.orgSeconds, Fewer Is BetterTimed Linux Kernel Compilation 6.8Build: defconfig100mV CPU undervolt4080120160200SE +/- 1.13, N = 3180.20

Phoronix Test Suite v10.8.5