Intel NUC Linux CPU Governor Performance A Processor comparison looking at the impact of Intel P-State and ACPI CPUfreq drivers and CPU scaling governors. Benchmarks by Michael Larabel for a future article on Phoronix.com.. P-State Performance: Processor: Intel Celeron N2820 @ 1.80GHz (2 Cores), Motherboard: Intel DN2820FYK, Chipset: Intel ValleyView SSA-CUnit, Memory: 3584MB, Disk: 1000GB HGST HTS721010A9, Graphics: Intel ValleyView Gen7 (755MHz), Audio: Intel ValleyView HD Audio, Network: Realtek RTL8111/8168/8411 + Intel Wireless 7260 OS: Ubuntu 14.04, Kernel: 3.15.0-999-generic (x86_64), Desktop: Unity 7.2.0, Display Server: X Server 1.15.1, Display Driver: intel 2.99.911, OpenGL: 3.3 Mesa 10.3.0-devel (git-57730d6 trusty-oibaf-ppa), Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080 ACPI CPUfreq Ondemand: Processor: Intel Celeron N2820 @ 2.13GHz (2 Cores), Motherboard: Intel DN2820FYK, Chipset: Intel ValleyView SSA-CUnit, Memory: 3584MB, Disk: 1000GB HGST HTS721010A9, Graphics: Intel ValleyView Gen7 (755MHz), Audio: Intel ValleyView HD Audio, Network: Realtek RTL8111/8168/8411 + Intel Wireless 7260 OS: Ubuntu 14.04, Kernel: 3.15.0-999-generic (x86_64), Desktop: Unity 7.2.0, Display Server: X Server 1.15.1, Display Driver: intel 2.99.911, OpenGL: 3.3 Mesa 10.3.0-devel (git-57730d6 trusty-oibaf-ppa), Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080 ACPI CPUfreq Conservative: Processor: Intel Celeron N2820 @ 2.13GHz (2 Cores), Motherboard: Intel DN2820FYK, Chipset: Intel ValleyView SSA-CUnit, Memory: 3584MB, Disk: 1000GB HGST HTS721010A9, Graphics: Intel ValleyView Gen7 (755MHz), Audio: Intel ValleyView HD Audio, Network: Realtek RTL8111/8168/8411 + Intel Wireless 7260 OS: Ubuntu 14.04, Kernel: 3.15.0-999-generic (x86_64), Desktop: Unity 7.2.0, Display Server: X Server 1.15.1, Display Driver: intel 2.99.911, OpenGL: 3.3 Mesa 10.3.0-devel (git-57730d6 trusty-oibaf-ppa), Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080 ACPI CPUfreq Performance: Processor: Intel Celeron N2820 @ 2.13GHz (2 Cores), Motherboard: Intel DN2820FYK, Chipset: Intel ValleyView SSA-CUnit, Memory: 3584MB, Disk: 1000GB HGST HTS721010A9, Graphics: Intel ValleyView Gen7 (755MHz), Audio: Intel ValleyView HD Audio, Network: Realtek RTL8111/8168/8411 + Intel Wireless 7260 OS: Ubuntu 14.04, Kernel: 3.15.0-999-generic (x86_64), Desktop: Unity 7.2.0, Display Server: X Server 1.15.1, Display Driver: intel 2.99.911, OpenGL: 3.3 Mesa 10.3.0-devel (git-57730d6 trusty-oibaf-ppa), Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080 ACPI CPUfreq Powersave: Processor: Intel Celeron N2820 @ 2.13GHz (2 Cores), Motherboard: Intel DN2820FYK, Chipset: Intel ValleyView SSA-CUnit, Memory: 3584MB, Disk: 1000GB HGST HTS721010A9, Graphics: Intel ValleyView Gen7 (755MHz), Audio: Intel ValleyView HD Audio, Network: Realtek RTL8111/8168/8411 + Intel Wireless 7260 OS: Ubuntu 14.04, Kernel: 3.15.0-999-generic (x86_64), Desktop: Unity 7.2.0, Display Server: X Server 1.15.1, Display Driver: intel 2.99.911, OpenGL: 3.3 Mesa 10.3.0-devel (git-57730d6 trusty-oibaf-ppa), Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080 PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better P-State Performance ....... 431 |============================================= ACPI CPUfreq Ondemand ..... 442 |============================================== ACPI CPUfreq Conservative . 407 |========================================== ACPI CPUfreq Performance .. 441 |============================================== ACPI CPUfreq Powersave .... 184 |=================== OpenArena 0.8.5 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better P-State Performance ....... 50.53 |============================================ ACPI CPUfreq Ondemand ..... 50.60 |============================================ ACPI CPUfreq Conservative . 50.37 |============================================ ACPI CPUfreq Performance .. 50.70 |============================================ ACPI CPUfreq Powersave .... 26.13 |======================= Tesseract 2014-05-12 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better P-State Performance ....... 11.58 |============================================ ACPI CPUfreq Ondemand ..... 11.58 |============================================ ACPI CPUfreq Conservative . 11.43 |=========================================== ACPI CPUfreq Performance .. 11.59 |============================================ ACPI CPUfreq Powersave .... 10.38 |======================================= Warsow 1.5 Resolution: 1920 x 1080 Frames Per Second > Higher Is Better P-State Performance ....... 12.43 |============================================ ACPI CPUfreq Ondemand ..... 12.43 |============================================ ACPI CPUfreq Conservative . 11.27 |======================================== ACPI CPUfreq Performance .. 12.37 |============================================ ACPI CPUfreq Powersave .... 7.17 |========================= x264 2014-01-09 H.264 Video Encoding Frames Per Second > Higher Is Better P-State Performance ....... 17.59 |============================================ ACPI CPUfreq Ondemand ..... 17.56 |============================================ ACPI CPUfreq Conservative . 17.50 |============================================ ACPI CPUfreq Performance .. 17.62 |============================================ ACPI CPUfreq Powersave .... 4.02 |========== Timed Apache Compilation 2.4.7 Time To Compile Seconds < Lower Is Better P-State Performance ....... 194.67 |=========== ACPI CPUfreq Ondemand ..... 195.64 |=========== ACPI CPUfreq Conservative . 194.82 |=========== ACPI CPUfreq Performance .. 193.86 |=========== ACPI CPUfreq Powersave .... 770.76 |=========================================== Timed ImageMagick Compilation 6.8.1-10 Time To Compile Seconds < Lower Is Better P-State Performance ....... 476.71 |============ ACPI CPUfreq Ondemand ..... 475.65 |============ ACPI CPUfreq Conservative . 476.68 |============ ACPI CPUfreq Performance .. 475.22 |============ ACPI CPUfreq Powersave .... 1717.19 |========================================== Parallel BZIP2 Compression 1.1.6 256MB File Compression Seconds < Lower Is Better P-State Performance ....... 62.49 |============ ACPI CPUfreq Ondemand ..... 63.35 |============= ACPI CPUfreq Conservative . 63.21 |============ ACPI CPUfreq Performance .. 62.78 |============ ACPI CPUfreq Powersave .... 217.61 |=========================================== LAME MP3 Encoding 3.99.3 WAV To MP3 Seconds < Lower Is Better P-State Performance ....... 42.75 |========= ACPI CPUfreq Ondemand ..... 42.76 |========= ACPI CPUfreq Conservative . 43.08 |========== ACPI CPUfreq Performance .. 42.72 |========= ACPI CPUfreq Powersave .... 193.56 |=========================================== FFmpeg 2.1.1 H.264 HD To NTSC DV Seconds < Lower Is Better P-State Performance ....... 49.75 |========== ACPI CPUfreq Ondemand ..... 50.13 |========== ACPI CPUfreq Conservative . 50.10 |========== ACPI CPUfreq Performance .. 49.69 |========== ACPI CPUfreq Powersave .... 208.16 |=========================================== Apache Benchmark 2.4.7 Static Web Page Serving Requests Per Second > Higher Is Better P-State Performance ....... 4064.73 |========================================== ACPI CPUfreq Ondemand ..... 4073.86 |========================================== ACPI CPUfreq Conservative . 4026.06 |========================================== ACPI CPUfreq Performance .. 4046.47 |========================================== ACPI CPUfreq Powersave .... 1098.77 |===========