Linux 4.4 CPU Scaling Driver Governors Intel P-State and CPUfreq scaling governor benchmarks on Linux 4.4 kernel. Benchmarks by Michael Larabel. P-State Powersave: Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.4.0-040400-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: GCC 5.3.1 20160112, File-System: ext4, Screen Resolution: 2560x1440 P-State Performance: Processor: Intel Xeon E5-2687W v3 @ 3.50GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.4.0-040400-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: GCC 5.3.1 20160112, File-System: ext4, Screen Resolution: 2560x1440 CPUFreq Performance: Processor: Intel Xeon E5-2687W v3 @ 3.10GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.4.0-040400-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: GCC 5.3.1 20160112, File-System: ext4, Screen Resolution: 2560x1440 CPUFreq Ondemand: Processor: Intel Xeon E5-2687W v3 @ 3.10GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.4.0-040400-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: GCC 5.3.1 20160112, File-System: ext4, Screen Resolution: 2560x1440 CPUFreq Powersave: Processor: Intel Xeon E5-2687W v3 @ 3.10GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.4.0-040400-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: GCC 5.3.1 20160112, File-System: ext4, Screen Resolution: 2560x1440 CPUFreq Conservative: Processor: Intel Xeon E5-2687W v3 @ 3.10GHz (20 Cores), Motherboard: MSI X99S SLI PLUS (MS-7885) v1.0, Chipset: Intel Xeon E7 v3/Xeon, Memory: 16384MB, Disk: PNY CS1211 120GB + 80GB INTEL SSDSCKGW08, Graphics: AMD FirePro V7900 2048MB, Audio: Realtek ALC892, Monitor: ASUS PB278, Network: Intel Connection OS: Ubuntu 16.04, Kernel: 4.4.0-040400-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 3.3 Mesa 11.0.8 Gallium 0.4, Compiler: GCC 5.3.1 20160112, File-System: ext4, Screen Resolution: 2560x1440 C-Ray 1.1 Total Time Seconds < Lower Is Better P-State Powersave .... 10.72 |================== P-State Performance .. 10.74 |================== CPUFreq Performance .. 10.79 |=================== CPUFreq Ondemand ..... 10.80 |=================== CPUFreq Powersave .... 28.49 |================================================= CPUFreq Conservative . 10.78 |=================== FFmpeg 2.8.1 H.264 HD To NTSC DV Seconds < Lower Is Better P-State Powersave .... 24.55 |========================================= P-State Performance .. 10.69 |================== CPUFreq Performance .. 16.54 |============================ CPUFreq Ondemand ..... 15.90 |=========================== CPUFreq Powersave .... 29.15 |================================================= CPUFreq Conservative . 16.08 |=========================== FLAC Audio Encoding 1.3.1 WAV To FLAC Seconds < Lower Is Better P-State Powersave .... 7.18 |=================== P-State Performance .. 6.93 |================== CPUFreq Performance .. 6.96 |================== CPUFreq Ondemand ..... 6.95 |================== CPUFreq Powersave .... 18.98 |================================================= CPUFreq Conservative . 6.96 |================== LAME MP3 Encoding 3.99.3 WAV To MP3 Seconds < Lower Is Better P-State Powersave .... 13.00 |================= P-State Performance .. 13.07 |================= CPUFreq Performance .. 12.79 |================ CPUFreq Ondemand ..... 12.94 |================= CPUFreq Powersave .... 38.05 |================================================= CPUFreq Conservative . 12.99 |================= OpenArena 0.8.8 Resolution: 2560 x 1440 Frames Per Second > Higher Is Better P-State Powersave .... 64.43 |================================================ P-State Performance .. 65.23 |================================================= CPUFreq Performance .. 64.30 |================================================ CPUFreq Ondemand ..... 64.23 |================================================ CPUFreq Powersave .... 64.43 |================================================ CPUFreq Conservative . 64.20 |================================================ OpenArena 0.8.8 Resolution: 2560 x 1440 - Total Frame Time Milliseconds < Lower Is Better P-State Powersave .... MIN: 3.0 AVG: 15.5 MAX: 37.0 P-State Performance .. MIN: 2.0 AVG: 15.3 MAX: 37.0 CPUFreq Performance .. MIN: 2.0 AVG: 15.5 MAX: 37.0 CPUFreq Ondemand ..... MIN: 2.0 AVG: 15.5 MAX: 37.0 CPUFreq Powersave .... MIN: 4.0 AVG: 15.5 MAX: 46.0 CPUFreq Conservative . MIN: 2.0 AVG: 15.5 MAX: 38.0 PostgreSQL pgbench 9.4.3 Scaling: Buffer Test - Test: Single Thread - Mode: Read Write TPS > Higher Is Better P-State Powersave .... 348.16 |===================================== P-State Performance .. 452.73 |================================================ CPUFreq Performance .. 367.60 |======================================= CPUFreq Ondemand ..... 369.88 |======================================= CPUFreq Powersave .... 330.05 |=================================== CPUFreq Conservative . 368.37 |======================================= PostgreSQL pgbench 9.4.3 Scaling: Buffer Test - Test: Heavy Contention - Mode: Read Write TPS > Higher Is Better P-State Powersave .... 5519.86 |============================================== P-State Performance .. 5580.78 |=============================================== CPUFreq Performance .. 5239.37 |============================================ CPUFreq Ondemand ..... 5286.70 |============================================= CPUFreq Powersave .... 4925.67 |========================================= CPUFreq Conservative . 5080.88 |=========================================== SQLite 3.8.10.2 Test Target: Default Test Directory Seconds < Lower Is Better P-State Powersave .... 54.76 |================================================ P-State Performance .. 53.50 |=============================================== CPUFreq Performance .. 55.28 |================================================= CPUFreq Ondemand ..... 55.52 |================================================= CPUFreq Powersave .... 54.79 |================================================ CPUFreq Conservative . 55.39 |================================================= Tesseract 2014-05-12 Resolution: 2560 x 1440 Frames Per Second > Higher Is Better P-State Powersave .... 80.57 |================================================ P-State Performance .. 81.81 |================================================= CPUFreq Performance .. 81.27 |================================================= CPUFreq Ondemand ..... 81.60 |================================================= CPUFreq Powersave .... 77.63 |============================================== CPUFreq Conservative . 81.43 |================================================= Timed Linux Kernel Compilation 4.3 Time To Compile Seconds < Lower Is Better P-State Powersave .... 54.24 |=================== P-State Performance .. 52.00 |================== CPUFreq Performance .. 53.72 |=================== CPUFreq Ondemand ..... 53.97 |=================== CPUFreq Powersave .... 136.15 |================================================ CPUFreq Conservative . 53.90 |=================== x264 2015-11-02 H.264 Video Encoding Frames Per Second > Higher Is Better P-State Powersave .... 353.64 |=============================================== P-State Performance .. 364.77 |================================================ CPUFreq Performance .. 310.74 |========================================= CPUFreq Ondemand ..... 311.41 |========================================= CPUFreq Powersave .... 141.60 |=================== CPUFreq Conservative . 307.20 |======================================== Xonotic 0.8 Resolution: 2560 x 1440 - Effects Quality: Low Frames Per Second > Higher Is Better P-State Powersave .... 279.49 |============================================= P-State Performance .. 296.12 |================================================ CPUFreq Performance .. 249.37 |======================================== CPUFreq Ondemand ..... 255.07 |========================================= CPUFreq Powersave .... 116.76 |=================== CPUFreq Conservative . 253.25 |========================================= Xonotic 0.8 Resolution: 2560 x 1440 - Effects Quality: High Frames Per Second > Higher Is Better P-State Powersave .... 143.84 |============================================ P-State Performance .. 156.41 |================================================ CPUFreq Performance .. 142.36 |============================================ CPUFreq Ondemand ..... 142.52 |============================================ CPUFreq Powersave .... 90.50 |============================ CPUFreq Conservative . 141.64 |=========================================== Xonotic 0.8 Resolution: 2560 x 1440 - Effects Quality: Ultra Frames Per Second > Higher Is Better P-State Powersave .... 108.60 |============================================== P-State Performance .. 113.41 |================================================ CPUFreq Performance .. 108.78 |============================================== CPUFreq Ondemand ..... 108.86 |============================================== CPUFreq Powersave .... 80.05 |================================== CPUFreq Conservative . 108.52 |==============================================