GCC Compiler Testing Intel Core i7-4558U testing with a ASUS UX301LAA v1.0 and Intel Haswell-ULT IGP on Ubuntu 15.10 via the Phoronix Test Suite. -O3: Processor: Intel Core i7-4558U @ 3.30GHz (4 Cores), Motherboard: ASUS UX301LAA v1.0, Chipset: Intel Haswell-ULT DRAM, Memory: 8192MB, Disk: 2 x 128GB SanDisk SD6SP1M1, Graphics: Intel Haswell-ULT IGP (1200MHz), Audio: Intel Haswell-ULT HD Audio, Monitor: LQ133T1JW14, Network: Intel Wireless 7260 OS: Ubuntu 15.10, Kernel: 4.2.0-16-generic (x86_64), Desktop: Unity, Display Server: X Server 1.17.2, Display Driver: intel 2.99.917, OpenGL: 3.3 Mesa 11.0.2, Compiler: GCC 5.2.1 20151010, File-System: ext4, Screen Resolution: 2560x1440 -O3 -march=native: Processor: Intel Core i7-4558U @ 3.30GHz (4 Cores), Motherboard: ASUS UX301LAA v1.0, Chipset: Intel Haswell-ULT DRAM, Memory: 8192MB, Disk: 2 x 128GB SanDisk SD6SP1M1, Graphics: Intel Haswell-ULT IGP (1200MHz), Audio: Intel Haswell-ULT HD Audio, Monitor: LQ133T1JW14, Network: Intel Wireless 7260 OS: Ubuntu 15.10, Kernel: 4.2.0-16-generic (x86_64), Desktop: Unity, Display Server: X Server 1.17.2, Display Driver: intel 2.99.917, OpenGL: 3.3 Mesa 11.0.2, Compiler: GCC 5.2.1 20151010, File-System: ext4, Screen Resolution: 2560x1440 -O3 -march=native -flto: Processor: Intel Core i7-4558U @ 3.30GHz (4 Cores), Motherboard: ASUS UX301LAA v1.0, Chipset: Intel Haswell-ULT DRAM, Memory: 8192MB, Disk: 2 x 128GB SanDisk SD6SP1M1, Graphics: Intel Haswell-ULT IGP (1200MHz), Audio: Intel Haswell-ULT HD Audio, Monitor: LQ133T1JW14, Network: Intel Wireless 7260 OS: Ubuntu 15.10, Kernel: 4.2.0-16-generic (x86_64), Desktop: Unity, Display Server: X Server 1.17.2, Display Driver: intel 2.99.917, OpenGL: 3.3 Mesa 11.0.2, Compiler: GCC 5.2.1 20151010, File-System: ext4, Screen Resolution: 2560x1440 Parboil 2.5 Test: OpenMP CUTCP Seconds < Lower Is Better -O3 ..................... 32.54 |============================================= -O3 -march=native ....... 33.22 |============================================== -O3 -march=native -flto . 32.18 |============================================= Parboil 2.5 Test: OpenMP MRI Gridding Seconds < Lower Is Better -O3 ..................... 31.20 |============================================== -O3 -march=native ....... 31.03 |============================================== -O3 -march=native -flto . 30.89 |============================================== BYTE Unix Benchmark 3.6 Computational Test: Dhrystone 2 LPS > Higher Is Better -O3 ..................... 27798942.65 |=============================== -O3 -march=native ....... 27650898.98 |=============================== -O3 -march=native -flto . 36057572.90 |======================================== TTSIOD 3D Renderer 2.2z Phong Rendering With Soft-Shadow Mapping FPS > Higher Is Better -O3 ............... 88.62 |==================================================== -O3 -march=native . 85.91 |================================================== GraphicsMagick 1.3.19 Operation: Blur Iterations Per Minute > Higher Is Better -O3 ............... 121 |==================================================== -O3 -march=native . 126 |====================================================== GraphicsMagick 1.3.19 Operation: Sharpen Iterations Per Minute > Higher Is Better -O3 ............... 75 |================================================= -O3 -march=native . 84 |======================================================= GraphicsMagick 1.3.19 Operation: HWB Color Space Iterations Per Minute > Higher Is Better -O3 ............... 161 |====================================================== -O3 -march=native . 162 |====================================================== GraphicsMagick 1.3.19 Operation: Local Adaptive Thresholding Iterations Per Minute > Higher Is Better -O3 ............... 82 |====================================================== -O3 -march=native . 83 |======================================================= Himeno Benchmark 3.0 Poisson Pressure Solver MFLOPS > Higher Is Better -O3 ..................... 1694.46 |======================================== -O3 -march=native ....... 1584.04 |===================================== -O3 -march=native -flto . 1867.44 |============================================ Timed Apache Compilation 2.4.7 Time To Compile Seconds < Lower Is Better -O3 ............... 48.29 |=================================================== -O3 -march=native . 49.47 |==================================================== Timed PHP Compilation 5.2.9 Time To Compile Seconds < Lower Is Better -O3 ..................... 51.93 |====================== -O3 ..................... 51.98 |====================== -O3 -march=native ....... 54.48 |======================== -O3 -march=native -flto . 104.07 |============================================= C-Ray 1.1 Total Time Seconds < Lower Is Better -O3 ..................... 52.79 |============================================ -O3 -march=native ....... 40.92 |================================== -O3 -march=native -flto . 55.77 |============================================== Smallpt 1.0 Global Illumination Renderer; 100 Samples Seconds < Lower Is Better -O3 ..................... 61 |================================================= -O3 -march=native ....... 58 |=============================================== -O3 -march=native -flto . 58 |=============================================== FLAC Audio Encoding 1.3.1 WAV To FLAC Seconds < Lower Is Better -O3 ............... 6.92 |=============================================== -O3 -march=native . 7.74 |===================================================== LAME MP3 Encoding 3.99.3 WAV To MP3 Seconds < Lower Is Better -O3 ............... 14.52 |==================================================== -O3 -march=native . 14.42 |==================================================== FFmpeg 2.6.2 H.264 HD To NTSC DV Seconds < Lower Is Better -O3 ............... 15.62 |==================================================== -O3 -march=native . 15.41 |=================================================== PostgreSQL pgbench 9.4.3 Scaling: Buffer Test - Test: Normal Load - Mode: Read Write TPS > Higher Is Better -O3 ............... 2085.21 |================================================ -O3 -march=native . 2160.34 |================================================== PostgreSQL pgbench 9.4.3 Scaling: Buffer Test - Test: Heavy Contention - Mode: Read Write TPS > Higher Is Better -O3 ............... 2669.41 |================================================== -O3 -march=native . 2672.71 |================================================== Redis 3.0.1 Test: LPOP Requests Per Second > Higher Is Better -O3 ............... 2122654.87 |============================================ -O3 -march=native . 2272722.44 |=============================================== Redis 3.0.1 Test: SADD Requests Per Second > Higher Is Better -O3 ............... 1602104.87 |=========================================== -O3 -march=native . 1758663.50 |=============================================== Redis 3.0.1 Test: LPUSH Requests Per Second > Higher Is Better -O3 ............... 1561021.46 |============================================= -O3 -march=native . 1617577.83 |=============================================== Redis 3.0.1 Test: GET Requests Per Second > Higher Is Better -O3 ............... 2066838.62 |=============================================== -O3 -march=native . 2018866.81 |============================================== Redis 3.0.1 Test: SET Requests Per Second > Higher Is Better -O3 ............... 1513494.21 |============================================== -O3 -march=native . 1540646.71 |=============================================== Hierarchical INTegration 1.0 Test: FLOAT QUIPs > Higher Is Better -O3 ..................... 298228783.84 |====================================== -O3 -march=native ....... 306943497.32 |======================================= -O3 -march=native -flto . 310096105.79 |======================================= Apache Benchmark 2.4.7 Static Web Page Serving Requests Per Second > Higher Is Better -O3 ............... 22249.97 |=============================================== -O3 -march=native . 23149.55 |=================================================