Intel Linux 3.11 Kernel Power Tests Intel Core i5-2520M testing of modern Linux kernel power consumption. Benchmarking by Michael Larabel for a future article on Phoronix. Linux 3.8: Processor: Intel Core i5-2520M @ 2.50GHz (4 Cores), Motherboard: HP 161C, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 4096MB, Disk: 160GB INTEL SSDSA2M160, Graphics: Intel 2nd Generation Core Family IGP (1300MHz), Audio: IDT 92HD81B1X5, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 OS: Ubuntu 13.10, Kernel: 3.8.0-030800-generic (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.14.2, Display Driver: intel 2.21.12, OpenGL: 3.1 Mesa 9.1.4, Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1600x900 Linux 3.9: Processor: Intel Core i5-2520M @ 3.20GHz (4 Cores), Motherboard: HP 161C, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 4096MB, Disk: 160GB INTEL SSDSA2M160, Graphics: Intel 2nd Generation Core Family IGP (1300MHz), Audio: IDT 92HD81B1X5, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 OS: Ubuntu 13.10, Kernel: 3.9.0-030900-generic (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.14.2, Display Driver: intel 2.21.12, OpenGL: 3.1 Mesa 9.1.4, Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1600x900 Linux 3.10: Processor: Intel Core i5-2520M @ 3.20GHz (4 Cores), Motherboard: HP 161C, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 4096MB, Disk: 160GB INTEL SSDSA2M160, Graphics: Intel 2nd Generation Core Family IGP (1300MHz), Audio: IDT 92HD81B1X5, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 OS: Ubuntu 13.10, Kernel: 3.10.0-031000-generic (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.14.2, Display Driver: intel 2.21.12, OpenGL: 3.1 Mesa 9.1.4, Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1600x900 Linux 3.11 Git: Processor: Intel Core i5-2520M @ 3.20GHz (4 Cores), Motherboard: HP 161C, Chipset: Intel 2nd Generation Core Family DRAM, Memory: 4096MB, Disk: 160GB INTEL SSDSA2M160, Graphics: Intel 2nd Generation Core Family IGP (1300MHz), Audio: IDT 92HD81B1X5, Network: Intel 82579LM Gigabit Connection + Intel Centrino Advanced-N 6205 OS: Ubuntu 13.10, Kernel: 3.11.0-999-generic (x86_64), Desktop: Xfce 4.10, Display Server: X Server 1.14.2, Display Driver: intel 2.21.12, OpenGL: 3.1 Mesa 9.1.4, Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1600x900 FLAC Audio Encoding 1.3.0 WAV To FLAC Seconds < Lower Is Better Linux 3.8 ...... 6.51 |======================================================== Linux 3.9 ...... 6.55 |======================================================== Linux 3.10 ..... 6.51 |======================================================== Linux 3.11 Git . 6.55 |======================================================== FLAC Audio Encoding 1.3.0 System Power Consumption Monitor Milliwatts < Lower Is Better Linux 3.8 ...... MIN: 14379 AVG: 22816 MAX: 30491 Linux 3.9 ...... MIN: 14343 AVG: 24626 MAX: 30919 Linux 3.10 ..... MIN: 14726 AVG: 20113 MAX: 30887 Linux 3.11 Git . MIN: 13938 AVG: 22758 MAX: 30850 OpenArena 0.8.8 Resolution: 1600 x 900 Frames Per Second > Higher Is Better Linux 3.8 ...... 27.17 |======================================================= Linux 3.9 ...... 27.27 |======================================================= Linux 3.10 ..... 27.23 |======================================================= Linux 3.11 Git . 27.23 |======================================================= OpenArena 0.8.8 Resolution: 1600 x 900 - Total Frame Time Milliseconds < Lower Is Better Linux 3.8 ...... MIN: 6.0 AVG: 36.8 MAX: 79.0 Linux 3.9 ...... MIN: 6.0 AVG: 36.6 MAX: 80.0 Linux 3.10 ..... MIN: 6.0 AVG: 36.7 MAX: 80.0 Linux 3.11 Git . MIN: 6.0 AVG: 36.7 MAX: 80.0 OpenArena 0.8.8 System Power Consumption Monitor Milliwatts < Lower Is Better Linux 3.8 ...... MIN: 13665 AVG: 37185 MAX: 39025 Linux 3.9 ...... MIN: 13832 AVG: 41134 MAX: 44283 Linux 3.10 ..... MIN: 13854 AVG: 42236 MAX: 44456 Linux 3.11 Git . MIN: 13947 AVG: 40940 MAX: 43995 Xonotic 0.7 Resolution: 1600 x 900 - Effects Quality: High Frames Per Second > Higher Is Better Linux 3.8 ...... 45.47 |====================================================== Linux 3.9 ...... 45.86 |======================================================= Linux 3.10 ..... 45.22 |====================================================== Linux 3.11 Git . 45.93 |======================================================= Xonotic 0.7 System Power Consumption Monitor Milliwatts < Lower Is Better Linux 3.8 ...... MIN: 14329 AVG: 40457 MAX: 42907 Linux 3.9 ...... MIN: 14079 AVG: 43581 MAX: 46672 Linux 3.10 ..... MIN: 14170 AVG: 43784 MAX: 47037 Linux 3.11 Git . MIN: 14228 AVG: 44196 MAX: 47100 C-Ray 1.1 Total Time Seconds < Lower Is Better Linux 3.8 ...... 74.34 |======================================================= Linux 3.9 ...... 74.36 |======================================================= Linux 3.10 ..... 74.34 |======================================================= Linux 3.11 Git . 74.38 |======================================================= C-Ray 1.1 System Power Consumption Monitor Milliwatts < Lower Is Better Linux 3.8 ...... MIN: 14036 AVG: 38712 MAX: 40431 Linux 3.9 ...... MIN: 14694 AVG: 40484 MAX: 41313 Linux 3.10 ..... MIN: 14291 AVG: 39922 MAX: 41226 Linux 3.11 Git . MIN: 31298 AVG: 39957 MAX: 40970 Apache Benchmark 2.4.3 Static Web Page Serving Requests Per Second > Higher Is Better Linux 3.8 ...... 18141.32 |==================================================== Linux 3.9 ...... 17670.89 |=================================================== Linux 3.10 ..... 16077.99 |============================================== Linux 3.11 Git . 15960.57 |============================================== Apache Benchmark 2.4.3 System Power Consumption Monitor Milliwatts < Lower Is Better Linux 3.8 ...... MIN: 14092 AVG: 36395 MAX: 42662 Linux 3.9 ...... MIN: 14079 AVG: 40127 MAX: 43422 Linux 3.10 ..... MIN: 14492 AVG: 38515 MAX: 43925 Linux 3.11 Git . MIN: 14127 AVG: 40496 MAX: 43491 LAME MP3 Encoding 3.99.3 WAV To MP3 Seconds < Lower Is Better Linux 3.8 ...... 17.06 |======================================================= Linux 3.9 ...... 17.04 |======================================================= Linux 3.10 ..... 17.02 |======================================================= Linux 3.11 Git . 17.07 |======================================================= LAME MP3 Encoding 3.99.3 System Power Consumption Monitor Milliwatts < Lower Is Better Linux 3.8 ...... MIN: 14092 AVG: 30305 MAX: 30750 Linux 3.9 ...... MIN: 14092 AVG: 25292 MAX: 31414 Linux 3.10 ..... MIN: 14119 AVG: 28198 MAX: 31398 Linux 3.11 Git . MIN: 14107 AVG: 24402 MAX: 31233 System Power Consumption Monitor Phoronix Test Suite System Monitoring Milliwatts Linux 3.8 ...... MIN: 13665 AVG: 36628 MAX: 42907 Linux 3.9 ...... MIN: 13832 AVG: 39656 MAX: 46672 Linux 3.10 ..... MIN: 13854 AVG: 39582 MAX: 47037 Linux 3.11 Git . MIN: 13938 AVG: 39315 MAX: 47100