Linux 3.15 CPUfreq + Intel P-State Intel ACPI cpufreq and Intel P-State driver benchmarks plus of various scaling governors. Benchmarks by Michael Larabel for a future article on Phoronix.com. Intel P-State - Performance: Processor: Intel Core i7-4960X @ 4.00GHz (12 Cores), Motherboard: MSI X79MA-GD45 (MS-7738) v1.0, Chipset: Intel Xeon E7 v2/Xeon, Memory: 8192MB, Disk: 1000GB Seagate ST1000DX001-1CM1, Graphics: Sapphire AMD Radeon HD 4870 512MB, Audio: Intel C600/X79, Monitor: DELL S2409W, Network: Realtek RTL8111/8168/8411 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: radeon 7.3.0, OpenGL: 3.3 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080 Intel P-State - Powersave: Processor: Intel Core i7-4960X @ 4.00GHz (12 Cores), Motherboard: MSI X79MA-GD45 (MS-7738) v1.0, Chipset: Intel Xeon E7 v2/Xeon, Memory: 8192MB, Disk: 1000GB Seagate ST1000DX001-1CM1, Graphics: Sapphire AMD Radeon HD 4870 512MB, Audio: Intel C600/X79, Monitor: DELL S2409W, Network: Realtek RTL8111/8168/8411 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: radeon 7.3.0, OpenGL: 3.3 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080 ACPI CPUfreq - Ondemand: Processor: Intel Core i7-4960X @ 3.60GHz (12 Cores), Motherboard: MSI X79MA-GD45 (MS-7738) v1.0, Chipset: Intel Xeon E7 v2/Xeon, Memory: 8192MB, Disk: 1000GB Seagate ST1000DX001-1CM1, Graphics: Sapphire AMD Radeon HD 4870 512MB, Audio: Intel C600/X79, Monitor: DELL S2409W, Network: Realtek RTL8111/8168/8411 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: radeon 7.3.0, OpenGL: 3.3 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080 ACPI CPUfreq - Conservative: Processor: Intel Core i7-4960X @ 3.60GHz (12 Cores), Motherboard: MSI X79MA-GD45 (MS-7738) v1.0, Chipset: Intel Xeon E7 v2/Xeon, Memory: 8192MB, Disk: 1000GB Seagate ST1000DX001-1CM1, Graphics: Sapphire AMD Radeon HD 4870 512MB, Audio: Intel C600/X79, Monitor: DELL S2409W, Network: Realtek RTL8111/8168/8411 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: radeon 7.3.0, OpenGL: 3.3 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080 ACPI cpufreq - Performance: Processor: Intel Core i7-4960X @ 3.60GHz (12 Cores), Motherboard: MSI X79MA-GD45 (MS-7738) v1.0, Chipset: Intel Xeon E7 v2/Xeon, Memory: 8192MB, Disk: 1000GB Seagate ST1000DX001-1CM1, Graphics: Sapphire AMD Radeon HD 4870 512MB, Audio: Intel C600/X79, Monitor: DELL S2409W, Network: Realtek RTL8111/8168/8411 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: radeon 7.3.0, OpenGL: 3.3 Mesa 10.1.0 Gallium 0.4, Compiler: GCC 4.8.2, File-System: ext4, Screen Resolution: 1920x1080 System Power Consumption Monitor Phoronix Test Suite System Monitoring Watts Intel P-State - Performance . MIN: 171 AVG: 214 MAX: 301 Intel P-State - Powersave ... MIN: 165 AVG: 204 MAX: 286 ACPI CPUfreq - Ondemand ..... MIN: 163 AVG: 211 MAX: 300 ACPI CPUfreq - Conservative . MIN: 164 AVG: 203 MAX: 288 ACPI cpufreq - Performance .. MIN: 172 AVG: 215 MAX: 290 Unigine Tropics 1.3 Resolution: 1280 x 1024 Frames Per Second > Higher Is Better Intel P-State - Performance . 40.46 |========================================== Intel P-State - Powersave ... 40.39 |========================================== ACPI CPUfreq - Ondemand ..... 40.49 |========================================== ACPI CPUfreq - Conservative . 40.36 |========================================== ACPI cpufreq - Performance .. 40.47 |========================================== Xonotic 0.7 Resolution: 1920 x 1080 - Effects Quality: Low Frames Per Second > Higher Is Better Intel P-State - Performance . 269.38 |====================================== Intel P-State - Powersave ... 204.85 |============================= ACPI CPUfreq - Ondemand ..... 257.46 |===================================== ACPI CPUfreq - Conservative . 273.07 |======================================= ACPI cpufreq - Performance .. 288.50 |========================================= Unigine Tropics 1.3 Resolution: 1280 x 1024 Frames Per Second Per Watt > Higher Is Better Intel P-State - Performance . 0.20 |========================================= Intel P-State - Powersave ... 0.21 |=========================================== ACPI CPUfreq - Ondemand ..... 0.20 |========================================= ACPI CPUfreq - Conservative . 0.20 |========================================= ACPI cpufreq - Performance .. 0.19 |======================================= Xonotic 0.7 Resolution: 1920 x 1080 - Effects Quality: Ultimate Frames Per Second > Higher Is Better Intel P-State - Performance . 65.48 |========================================== Intel P-State - Powersave ... 49.54 |================================ ACPI CPUfreq - Ondemand ..... 59.27 |====================================== ACPI CPUfreq - Conservative . 54.92 |=================================== ACPI cpufreq - Performance .. 65.78 |========================================== x264 2014-01-09 H.264 Video Encoding Frames Per Second > Higher Is Better Intel P-State - Performance . 233.29 |======================================== Intel P-State - Powersave ... 229.64 |======================================= ACPI CPUfreq - Ondemand ..... 240.31 |========================================= ACPI CPUfreq - Conservative . 228.81 |======================================= ACPI cpufreq - Performance .. 237.50 |========================================= Xonotic 0.7 Resolution: 1920 x 1080 - Effects Quality: Low Frames Per Second Per Watt > Higher Is Better Intel P-State - Performance . 1.31 |========================================== Intel P-State - Powersave ... 1.06 |================================== ACPI CPUfreq - Ondemand ..... 1.24 |======================================== ACPI CPUfreq - Conservative . 1.29 |========================================= ACPI cpufreq - Performance .. 1.34 |=========================================== Xonotic 0.7 Resolution: 1920 x 1080 - Effects Quality: Ultimate Frames Per Second Per Watt > Higher Is Better Intel P-State - Performance . 0.31 |=========================================== Intel P-State - Powersave ... 0.27 |===================================== ACPI CPUfreq - Ondemand ..... 0.30 |========================================== ACPI CPUfreq - Conservative . 0.29 |======================================== ACPI cpufreq - Performance .. 0.31 |=========================================== x264 2014-01-09 H.264 Video Encoding Frames Per Second Per Watt > Higher Is Better Intel P-State - Performance . 0.96 |======================================= Intel P-State - Powersave ... 1.03 |========================================== ACPI CPUfreq - Ondemand ..... 1.05 |=========================================== ACPI CPUfreq - Conservative . 1.01 |========================================= ACPI cpufreq - Performance .. 0.96 |======================================= GraphicsMagick 1.3.19 Operation: Resizing Iterations Per Minute Per Watt > Higher Is Better Intel P-State - Performance . 0.83 |========================================== Intel P-State - Powersave ... 0.86 |=========================================== ACPI CPUfreq - Ondemand ..... 0.86 |=========================================== ACPI CPUfreq - Conservative . 0.86 |=========================================== ACPI cpufreq - Performance .. 0.86 |=========================================== GraphicsMagick 1.3.19 Operation: Resizing Iterations Per Minute > Higher Is Better Intel P-State - Performance . 169 |========================================= Intel P-State - Powersave ... 183 |============================================ ACPI CPUfreq - Ondemand ..... 183 |============================================ ACPI CPUfreq - Conservative . 183 |============================================ ACPI cpufreq - Performance .. 183 |============================================ Timed Linux Kernel Compilation 3.1 Time To Compile Performance Per Watt > Higher Is Better Intel P-State - Performance . 4.86 |=========================================== Intel P-State - Powersave ... 1.89 |================= ACPI CPUfreq - Ondemand ..... 4.81 |=========================================== ACPI CPUfreq - Conservative . 1.86 |================ ACPI cpufreq - Performance .. 1.94 |================= C-Ray 1.1 Total Time Performance Per Watt > Higher Is Better Intel P-State - Performance . 15.92 |========================================== Intel P-State - Powersave ... 14.20 |===================================== ACPI CPUfreq - Ondemand ..... 15.91 |========================================== ACPI CPUfreq - Conservative . 2.36 |====== ACPI cpufreq - Performance .. 13.48 |==================================== Parallel BZIP2 Compression 1.1.6 256MB File Compression Performance Per Watt > Higher Is Better Intel P-State - Performance . 43.12 |========================================== Intel P-State - Powersave ... 38.50 |====================================== ACPI CPUfreq - Ondemand ..... 37.37 |==================================== ACPI CPUfreq - Conservative . 16.80 |================ ACPI cpufreq - Performance .. 21.94 |===================== Apache Benchmark 2.4.7 Static Web Page Serving Requests Per Second Per Watt > Higher Is Better Intel P-State - Performance . 74.89 |========================================== Intel P-State - Powersave ... 75.14 |========================================== ACPI CPUfreq - Ondemand ..... 72.61 |========================================= ACPI CPUfreq - Conservative . 62.16 |=================================== ACPI cpufreq - Performance .. 71.55 |======================================== Apache Benchmark 2.4.7 Static Web Page Serving Requests Per Second > Higher Is Better Intel P-State - Performance . 17700.01 |======================================= Intel P-State - Powersave ... 17602.56 |======================================= ACPI CPUfreq - Ondemand ..... 17000.49 |===================================== ACPI CPUfreq - Conservative . 14712.59 |================================ ACPI cpufreq - Performance .. 16740.50 |===================================== OpenSSL 1.0.1g RSA 4096-bit Performance Signs Per Second > Higher Is Better Intel P-State - Performance . 891.67 |========================================= Intel P-State - Powersave ... 890.60 |========================================= ACPI CPUfreq - Ondemand ..... 891.20 |========================================= ACPI CPUfreq - Conservative . 391.80 |================== ACPI cpufreq - Performance .. 820.80 |====================================== OpenSSL 1.0.1g RSA 4096-bit Performance Signs Per Second Per Watt > Higher Is Better Intel P-State - Performance . 3.12 |========================================= Intel P-State - Powersave ... 3.23 |=========================================== ACPI CPUfreq - Ondemand ..... 3.26 |=========================================== ACPI CPUfreq - Conservative . 1.80 |======================== ACPI cpufreq - Performance .. 2.95 |======================================= PostMark 1.51 Disk Transaction Performance TPS Per Watt > Higher Is Better Intel P-State - Performance . 21.41 |======================================== Intel P-State - Powersave ... 22.39 |========================================== ACPI CPUfreq - Ondemand ..... 21.96 |========================================= ACPI CPUfreq - Conservative . 22.23 |========================================== ACPI cpufreq - Performance .. 22.22 |========================================== PostMark 1.51 Disk Transaction Performance TPS > Higher Is Better Intel P-State - Performance . 4054 |======================================= Intel P-State - Powersave ... 4464 |=========================================== ACPI CPUfreq - Ondemand ..... 4411 |========================================== ACPI CPUfreq - Conservative . 4464 |=========================================== ACPI cpufreq - Performance .. 4464 |=========================================== Timed Linux Kernel Compilation 3.1 Time To Compile Seconds < Lower Is Better Intel P-State - Performance . 58.74 |==================== Intel P-State - Powersave ... 121.72 |========================================= ACPI CPUfreq - Ondemand ..... 58.37 |=================== ACPI CPUfreq - Conservative . 122.91 |========================================= ACPI cpufreq - Performance .. 119.08 |======================================== C-Ray 1.1 Total Time Seconds < Lower Is Better Intel P-State - Performance . 17.31 |========= Intel P-State - Powersave ... 18.98 |========= ACPI CPUfreq - Ondemand ..... 17.28 |========= ACPI CPUfreq - Conservative . 84.96 |========================================== ACPI cpufreq - Performance .. 19.19 |========= Parallel BZIP2 Compression 1.1.6 256MB File Compression Seconds < Lower Is Better Intel P-State - Performance . 5.01 |================= Intel P-State - Powersave ... 6.09 |==================== ACPI CPUfreq - Ondemand ..... 5.03 |================= ACPI CPUfreq - Conservative . 12.51 |========================================== ACPI cpufreq - Performance .. 9.27 |=============================== PostMark 1.51 System Power Consumption Monitor Watts < Lower Is Better Intel P-State - Performance . MIN: 177 AVG: 189 MAX: 191 Intel P-State - Powersave ... MIN: 180 AVG: 199 MAX: 202 ACPI CPUfreq - Ondemand ..... MIN: 200 AVG: 201 MAX: 201 ACPI CPUfreq - Conservative . MIN: 184 AVG: 201 MAX: 204 ACPI cpufreq - Performance .. MIN: 201 AVG: 201 MAX: 202 Unigine Tropics 1.3 System Power Consumption Monitor Watts < Lower Is Better Intel P-State - Performance . MIN: 185 AVG: 207 MAX: 224 Intel P-State - Powersave ... MIN: 170 AVG: 196 MAX: 202 ACPI CPUfreq - Ondemand ..... MIN: 187 AVG: 201 MAX: 209 ACPI CPUfreq - Conservative . MIN: 173 AVG: 197 MAX: 206 ACPI cpufreq - Performance .. MIN: 197 AVG: 212 MAX: 226 Xonotic 0.7 System Power Consumption Monitor Watts < Lower Is Better Intel P-State - Performance . MIN: 186 AVG: 206 MAX: 215 Intel P-State - Powersave ... MIN: 167 AVG: 193 MAX: 221 ACPI CPUfreq - Ondemand ..... MIN: 172 AVG: 207 MAX: 219 ACPI CPUfreq - Conservative . MIN: 170 AVG: 212 MAX: 221 ACPI cpufreq - Performance .. MIN: 183 AVG: 215 MAX: 221 Xonotic 0.7 System Power Consumption Monitor Watts < Lower Is Better Intel P-State - Performance . MIN: 186 AVG: 209 MAX: 214 Intel P-State - Powersave ... MIN: 170 AVG: 186 MAX: 199 ACPI CPUfreq - Ondemand ..... MIN: 173 AVG: 199 MAX: 208 ACPI CPUfreq - Conservative . MIN: 164 AVG: 191 MAX: 205 ACPI cpufreq - Performance .. MIN: 199 AVG: 213 MAX: 223 x264 2014-01-09 System Power Consumption Monitor Watts < Lower Is Better Intel P-State - Performance . MIN: 173 AVG: 242 MAX: 290 Intel P-State - Powersave ... MIN: 168 AVG: 222 MAX: 285 ACPI CPUfreq - Ondemand ..... MIN: 177 AVG: 228 MAX: 292 ACPI CPUfreq - Conservative . MIN: 184 AVG: 226 MAX: 288 ACPI cpufreq - Performance .. MIN: 177 AVG: 248 MAX: 290 GraphicsMagick 1.3.19 System Power Consumption Monitor Watts < Lower Is Better Intel P-State - Performance . MIN: 184 AVG: 203 MAX: 209 Intel P-State - Powersave ... MIN: 185 AVG: 213 MAX: 215 ACPI CPUfreq - Ondemand ..... MIN: 213 AVG: 214 MAX: 214 ACPI CPUfreq - Conservative . MIN: 185 AVG: 213 MAX: 216 ACPI cpufreq - Performance .. MIN: 213 AVG: 214 MAX: 214 Timed Linux Kernel Compilation 3.1 System Power Consumption Monitor Watts < Lower Is Better Intel P-State - Performance . MIN: 187 AVG: 285 MAX: 301 Intel P-State - Powersave ... MIN: 165 AVG: 230 MAX: 255 ACPI CPUfreq - Ondemand ..... MIN: 183 AVG: 281 MAX: 300 ACPI CPUfreq - Conservative . MIN: 168 AVG: 229 MAX: 255 ACPI cpufreq - Performance .. MIN: 177 AVG: 232 MAX: 257 C-Ray 1.1 System Power Consumption Monitor Watts < Lower Is Better Intel P-State - Performance . MIN: 275 AVG: 276 MAX: 276 Intel P-State - Powersave ... MIN: 262 AVG: 270 MAX: 272 ACPI CPUfreq - Ondemand ..... MIN: 274 AVG: 275 MAX: 275 ACPI CPUfreq - Conservative . MIN: 196 AVG: 200 MAX: 269 ACPI cpufreq - Performance .. MIN: 194 AVG: 259 MAX: 269 Parallel BZIP2 Compression 1.1.6 System Power Consumption Monitor Watts < Lower Is Better Intel P-State - Performance . MIN: 173 AVG: 216 MAX: 283 Intel P-State - Powersave ... MIN: 196 AVG: 234 MAX: 280 ACPI CPUfreq - Ondemand ..... MIN: 177 AVG: 188 MAX: 196 ACPI CPUfreq - Conservative . MIN: 184 AVG: 210 MAX: 276 ACPI cpufreq - Performance .. MIN: 177 AVG: 203 MAX: 279 OpenSSL 1.0.1g System Power Consumption Monitor Watts < Lower Is Better Intel P-State - Performance . MIN: 285 AVG: 286 MAX: 286 Intel P-State - Powersave ... MIN: 176 AVG: 275 MAX: 286 ACPI CPUfreq - Ondemand ..... MIN: 176 AVG: 274 MAX: 287 ACPI CPUfreq - Conservative . MIN: 175 AVG: 217 MAX: 283 ACPI cpufreq - Performance .. MIN: 276 AVG: 278 MAX: 282 Apache Benchmark 2.4.7 System Power Consumption Monitor Watts < Lower Is Better Intel P-State - Performance . MIN: 173 AVG: 236 MAX: 243 Intel P-State - Powersave ... MIN: 169 AVG: 234 MAX: 242 ACPI CPUfreq - Ondemand ..... MIN: 168 AVG: 234 MAX: 242 ACPI CPUfreq - Conservative . MIN: 233 AVG: 237 MAX: 238 ACPI cpufreq - Performance .. MIN: 175 AVG: 234 MAX: 243