undervolting

Intel Core i5-4210U testing with a LENOVO Cherry 4A (7CCN60WW BIOS) and Intel Haswell Mobile 2GB on Ubuntu 18.04 via the Phoronix Test Suite.

HTML result view exported from: https://openbenchmarking.org/result/1908067-HV-UNDERVOLT54.

undervoltingProcessorMotherboardChipsetMemoryDiskGraphicsAudioNetworkOSKernelDesktopDisplay ServerDisplay DriverOpenGLCompilerFile-SystemScreen Resolution75-50-50-0-0Intel Core i5-4210U @ 2.70GHz (2 Cores / 4 Threads)LENOVO Cherry 4A (7CCN60WW BIOS)Intel Haswell-ULT DRAM8192MB256GB Samsung SSD 850Intel Haswell Mobile 2GB (1000MHz)Intel Haswell-ULT HD AudioRealtek RTL8111/8168/8411 + Intel 7260Ubuntu 18.045.0.0-23-generic (x86_64)KDE Plasma 5.12.8X Server 1.19.6modesetting 1.19.64.5 Mesa 19.0.2GCC 7.4.0ext41920x1080OpenBenchmarking.org- ERL_AFLAGS=-kernel shell_history enabled _KERL_SAVED_ERL_AFLAGS=- Scaling Governor: intel_pstate powersave- OpenJDK Runtime Environment (build 13-ea+30-Ubuntu-118.04)- l1tf: Mitigation of PTE Inversion; VMX: conditional cache flushes SMT vulnerable + mds: Mitigation of Clear buffers; SMT vulnerable + meltdown: Mitigation of PTI + spec_store_bypass: Mitigation of SSB disabled via prctl and seccomp + spectre_v1: Mitigation of __user pointer sanitization + spectre_v2: Mitigation of Full generic retpoline IBPB: conditional IBRS_FW STIBP: conditional RSB filling

undervoltingsunflow: Global Illumination + Image SynthesisStandard ErrorStandard Deviation75-50-50-0-07.740.051.13%OpenBenchmarking.org

Sunflow Rendering System

Global Illumination + Image Synthesis

OpenBenchmarking.orgSeconds, Fewer Is BetterSunflow Rendering System 0.07.2Global Illumination + Image Synthesis75-50-50-0-0246810SE +/- 0.05, N = 37.74

Phoronix Test Suite v10.8.4