Compare your own system(s) to this result file with the
Phoronix Test Suite by running the command:
phoronix-test-suite benchmark 1605173-GA-1602297GA75
Skylake Xeon GCC vs. Clang Compiler Optimization Tests
Intel Broadwell-DE 1587
GCC: -O0:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: GCC 5.3.1 20160222, File-System: ext4, Screen Resolution: 3840x2160
GCC: -O1:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: GCC 5.3.1 20160222, File-System: ext4, Screen Resolution: 3840x2160
GCC: -O2:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: GCC 5.3.1 20160222, File-System: ext4, Screen Resolution: 3840x2160
GCC: -O2 -march=native:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: GCC 5.3.1 20160222, File-System: ext4, Screen Resolution: 3840x2160
GCC: -O3:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: GCC 5.3.1 20160222, File-System: ext4, Screen Resolution: 3840x2160
GCC: -O3 -march=native:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: GCC 5.3.1 20160222, File-System: ext4, Screen Resolution: 3840x2160
GCC: -Ofast -march=native:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: GCC 5.3.1 20160222, File-System: ext4, Screen Resolution: 3840x2160
Clang: -O0:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: Clang 3.8.0-+rc2-1~exp1ubuntu2, File-System: ext4, Screen Resolution: 3840x2160
Clang: -O1:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: Clang 3.8.0-+rc2-1~exp1ubuntu2, File-System: ext4, Screen Resolution: 3840x2160
Clang: -O2:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: Clang 3.8.0-+rc2-1~exp1ubuntu2, File-System: ext4, Screen Resolution: 3840x2160
Clang: -O2 -march=native:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: Clang 3.8.0-+rc2-1~exp1ubuntu2, File-System: ext4, Screen Resolution: 3840x2160
Clang: -O3:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: Clang 3.8.0-+rc2-1~exp1ubuntu2, File-System: ext4, Screen Resolution: 3840x2160
Clang: -O3 -march=native:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: Clang 3.8.0-+rc2-1~exp1ubuntu2, File-System: ext4, Screen Resolution: 3840x2160
Clang: -Ofast -march=native:
Processor: Intel Xeon E3-1280 v5 @ 4.00GHz (8 Cores), Motherboard: MSI C236A WORKSTATION (MS-7998) v1.0, Chipset: Intel Sky Lake, Memory: 16384MB, Disk: 120GB Samsung SSD 850, Graphics: MSI AMD Radeon R7 370 / R9 270/370 OEM 4096MB, Audio: Realtek ALC1150, Monitor: DELL P2415Q, Network: Intel Connection
OS: Ubuntu 16.04, Kernel: 4.4.0-7-generic (x86_64), Desktop: Unity 7.4.0, Display Server: X Server 1.17.3, Display Driver: radeon 7.6.1, OpenGL: 4.1 Mesa 11.1.2 Gallium 0.4, Compiler: Clang 3.8.0-+rc2-1~exp1ubuntu2, File-System: ext4, Screen Resolution: 3840x2160
GCC 4.8.5 20150623:
Processor: 06/56 @ 2.30GHz (32 Cores), Motherboard: Supermicro X10SDV-7TP8F v1.01, Chipset: Intel Xeon E7 v4/Xeon, Memory: 2 x 8192 MB DDR4-2133MHz Micron, Disk: 240GB Toshiba MKNSSDAT240GB-DX, Graphics: ASPEED ASPEED Family, Network: Intel Connection X552 10 GbE SFP+
OS: Red Hat Enterprise Linux 7.2, Kernel: 3.10.0-327.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, Screen Resolution: 1024x768
GCC 4.8.5 run2:
Processor: 06/56 @ 2.30GHz (32 Cores), Motherboard: Supermicro X10SDV-7TP8F v1.01, Chipset: Intel Xeon E7 v4/Xeon, Memory: 2 x 8192 MB DDR4-2133MHz Micron, Disk: 240GB Toshiba MKNSSDAT240GB-DX, Graphics: ASPEED ASPEED Family, Network: Intel Connection X552 10 GbE SFP+
OS: Red Hat Enterprise Linux 7.2, Kernel: 3.10.0-327.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, Screen Resolution: 1024x768
Hierarchical INTegration 1.0
Test: FLOAT
QUIPs > Higher Is Better
GCC: -O0 .................... 127505415.48 |===========
GCC: -O1 .................... 295705864.24 |=========================
GCC: -O2 .................... 370257620.55 |================================
GCC: -O2 -march=native ...... 408904948.74 |===================================
GCC: -O3 .................... 381719210.59 |=================================
GCC: -O3 -march=native ...... 407575756.08 |===================================
GCC: -Ofast -march=native ... 392373251.20 |==================================
Clang: -O0 .................. 129742642.75 |===========
Clang: -O1 .................. 335679881.79 |=============================
Clang: -O2 .................. 387996153.74 |=================================
Clang: -O2 -march=native .... 288801639.39 |=========================
Clang: -O3 .................. 386593550.68 |=================================
Clang: -O3 -march=native .... 296846752.57 |=========================
Clang: -Ofast -march=native . 295042490.70 |=========================
GCC 4.8.5 20150623 .......... 241905166.12 |=====================
GCC 4.8.5 run2 .............. 241190797.17 |=====================
FLAC Audio Encoding 1.3.1
WAV To FLAC
Seconds < Lower Is Better
GCC: -O0 .................... 37.56 |=================================
GCC: -O1 .................... 5.97 |=====
GCC: -O2 .................... 5.22 |=====
GCC: -O2 -march=native ...... 4.87 |====
GCC: -O3 .................... 5.10 |====
GCC: -O3 -march=native ...... 4.88 |====
GCC: -Ofast -march=native ... 4.89 |====
Clang: -O0 .................. 47.95 |==========================================
Clang: -O1 .................. 6.97 |======
Clang: -O2 .................. 6.66 |======
Clang: -O2 -march=native .... 5.26 |=====
Clang: -O3 .................. 6.71 |======
Clang: -O3 -march=native .... 5.11 |====
Clang: -Ofast -march=native . 5.05 |====
GCC 4.8.5 20150623 .......... 11.90 |==========
GCC 4.8.5 run2 .............. 11.89 |==========
LAME MP3 Encoding 3.99.3
WAV To MP3
Seconds < Lower Is Better
GCC: -O0 .................... 30.50 |========================================
GCC: -O1 .................... 13.25 |=================
GCC: -O2 .................... 12.90 |=================
GCC: -O2 -march=native ...... 11.99 |================
GCC: -O3 .................... 12.10 |================
GCC: -O3 -march=native ...... 10.69 |==============
GCC: -Ofast -march=native ... 9.51 |=============
Clang: -O0 .................. 31.95 |==========================================
Clang: -O1 .................. 12.04 |================
Clang: -O2 .................. 12.17 |================
Clang: -O2 -march=native .... 12.03 |================
Clang: -O3 .................. 12.16 |================
Clang: -O3 -march=native .... 11.66 |===============
Clang: -Ofast -march=native . 11.10 |===============
GCC 4.8.5 20150623 .......... 21.71 |=============================
GCC 4.8.5 run2 .............. 21.01 |============================
Timed HMMer Search 2.3.2
Pfam Database Search
Seconds < Lower Is Better
GCC: -O0 .................... 26.89 |==========================================
GCC: -O1 .................... 8.86 |==============
GCC: -O2 .................... 8.35 |=============
GCC: -O2 -march=native ...... 8.35 |=============
GCC: -O3 .................... 8.17 |=============
GCC: -O3 -march=native ...... 8.16 |=============
GCC: -Ofast -march=native ... 8.00 |============
Clang: -O0 .................. 23.23 |====================================
Clang: -O1 .................. 8.97 |==============
Clang: -O2 .................. 8.29 |=============
Clang: -O2 -march=native .... 8.29 |=============
Clang: -O3 .................. 8.40 |=============
Clang: -O3 -march=native .... 8.29 |=============
Clang: -Ofast -march=native . 8.12 |=============
GCC 4.8.5 20150623 .......... 9.14 |==============
GCC 4.8.5 run2 .............. 9.09 |==============
Himeno Benchmark 3.0
Poisson Pressure Solver
MFLOPS > Higher Is Better
GCC: -O0 .................... 496.06 |=======
GCC: -O1 .................... 1302.83 |===================
GCC: -O2 .................... 2429.37 |===================================
GCC: -O2 -march=native ...... 2653.07 |======================================
GCC: -O3 .................... 2485.14 |====================================
GCC: -O3 -march=native ...... 2689.91 |=======================================
GCC: -Ofast -march=native ... 2757.77 |========================================
Clang: -O0 .................. 325.27 |=====
Clang: -O1 .................. 1931.06 |============================
Clang: -O2 .................. 2036.00 |==============================
Clang: -O2 -march=native .... 1923.64 |============================
Clang: -O3 .................. 2001.77 |=============================
Clang: -O3 -march=native .... 1962.71 |============================
Clang: -Ofast -march=native . 2114.80 |===============================
GCC 4.8.5 20150623 .......... 1343.84 |===================
GCC 4.8.5 run2 .............. 1345.69 |====================
Timed ImageMagick Compilation 6.9.0
Time To Compile
Seconds < Lower Is Better
GCC: -O0 .................... 12.23 |==========
GCC: -O1 .................... 24.96 |=====================
GCC: -O2 .................... 39.67 |=================================
GCC: -O2 -march=native ...... 37.57 |================================
GCC: -O3 .................... 49.70 |==========================================
GCC: -O3 -march=native ...... 48.97 |=========================================
GCC: -Ofast -march=native ... 49.99 |==========================================
Clang: -O0 .................. 9.78 |========
Clang: -O1 .................. 31.07 |==========================
Clang: -O2 .................. 36.53 |===============================
Clang: -O2 -march=native .... 38.45 |================================
Clang: -O3 .................. 49.59 |==========================================
Clang: -O3 -march=native .... 49.63 |==========================================
Clang: -Ofast -march=native . 50.02 |==========================================
GCC 4.8.5 20150623 .......... 32.26 |===========================
GCC 4.8.5 run2 .............. 32.14 |===========================
Timed Apache Compilation 2.4.7
Time To Compile
Seconds < Lower Is Better
GCC: -O0 .................... 11.08 |================
GCC: -O1 .................... 17.00 |========================
GCC: -O2 .................... 23.12 |================================
GCC: -O2 -march=native ...... 22.84 |================================
GCC: -O3 .................... 24.88 |===================================
GCC: -O3 -march=native ...... 25.17 |===================================
GCC: -Ofast -march=native ... 25.16 |===================================
Clang: -O0 .................. 10.93 |===============
Clang: -O1 .................. 18.85 |==========================
Clang: -O2 .................. 22.36 |===============================
Clang: -O2 -march=native .... 23.10 |================================
Clang: -O3 .................. 22.83 |================================
Clang: -O3 -march=native .... 23.07 |================================
Clang: -Ofast -march=native . 23.15 |=================================
GCC 4.8.5 20150623 .......... 29.87 |==========================================
GCC 4.8.5 run2 .............. 29.88 |==========================================
Timed PHP Compilation 5.2.9
Time To Compile
Seconds < Lower Is Better
GCC: -O0 .................... 7.27 |==============
GCC: -O1 .................... 13.35 |==========================
GCC: -O2 .................... 19.12 |=====================================
GCC: -O2 -march=native ...... 18.68 |====================================
GCC: -O3 .................... 21.21 |=========================================
GCC: -O3 -march=native ...... 21.68 |==========================================
GCC: -Ofast -march=native ... 21.75 |==========================================
Clang: -O0 .................. 6.44 |============
Clang: -O1 .................. 13.58 |==========================
Clang: -O2 .................. 16.96 |=================================
Clang: -O2 -march=native .... 17.92 |===================================
Clang: -O3 .................. 17.59 |==================================
Clang: -O3 -march=native .... 17.90 |===================================
Clang: -Ofast -march=native . 17.95 |===================================
GCC 4.8.5 20150623 .......... 19.19 |=====================================
GCC 4.8.5 run2 .............. 19.16 |=====================================
GraphicsMagick 1.3.19
Operation: Blur
Iterations Per Minute > Higher Is Better
GCC: -O0 .................... 107 |==========================
GCC: -O1 .................... 170 |==========================================
GCC: -O2 .................... 169 |==========================================
GCC: -O2 -march=native ...... 173 |===========================================
GCC: -O3 .................... 170 |==========================================
GCC: -O3 -march=native ...... 178 |============================================
GCC: -Ofast -march=native ... 177 |============================================
Clang: -O0 .................. 75 |===================
Clang: -O1 .................. 150 |=====================================
Clang: -O2 .................. 150 |=====================================
Clang: -O2 -march=native .... 150 |=====================================
Clang: -O3 .................. 150 |=====================================
Clang: -O3 -march=native .... 153 |======================================
Clang: -Ofast -march=native . 153 |======================================
GCC 4.8.5 20150623 .......... 113 |============================
GCC 4.8.5 run2 .............. 112 |============================
GraphicsMagick 1.3.19
Operation: HWB Color Space
Iterations Per Minute > Higher Is Better
GCC: -O0 .................... 136 |=========================
GCC: -O1 .................... 226 |==========================================
GCC: -O2 .................... 213 |========================================
GCC: -O2 -march=native ...... 228 |==========================================
GCC: -O3 .................... 228 |==========================================
GCC: -O3 -march=native ...... 234 |===========================================
GCC: -Ofast -march=native ... 237 |============================================
Clang: -O0 .................. 100 |===================
Clang: -O1 .................. 192 |====================================
Clang: -O2 .................. 193 |====================================
Clang: -O2 -march=native .... 196 |====================================
Clang: -O3 .................. 192 |====================================
Clang: -O3 -march=native .... 196 |====================================
Clang: -Ofast -march=native . 198 |=====================================
GCC 4.8.5 20150623 .......... 145 |===========================
GCC 4.8.5 run2 .............. 145 |===========================
GraphicsMagick 1.3.19
Operation: Local Adaptive Thresholding
Iterations Per Minute > Higher Is Better
GCC: -O0 .................... 22 |=========
GCC: -O1 .................... 92 |=======================================
GCC: -O2 .................... 100 |==========================================
GCC: -O2 -march=native ...... 103 |============================================
GCC: -O3 .................... 103 |============================================
GCC: -O3 -march=native ...... 104 |============================================
GCC: -Ofast -march=native ... 104 |============================================
Clang: -O0 .................. 22 |=========
Clang: -O1 .................. 89 |======================================
Clang: -O2 .................. 100 |==========================================
Clang: -O2 -march=native .... 99 |==========================================
Clang: -O3 .................. 100 |==========================================
Clang: -O3 -march=native .... 102 |===========================================
Clang: -Ofast -march=native . 101 |===========================================
GCC 4.8.5 20150623 .......... 59 |=========================
GCC 4.8.5 run2 .............. 59 |=========================
C-Ray 1.1
Total Time
Seconds < Lower Is Better
GCC: -O0 .................... 61.53 |==========================================
GCC: -O1 .................... 43.15 |=============================
GCC: -O2 .................... 38.19 |==========================
GCC: -O2 -march=native ...... 27.83 |===================
GCC: -O3 .................... 19.65 |=============
GCC: -O3 -march=native ...... 14.60 |==========
GCC: -Ofast -march=native ... 13.92 |==========
Clang: -O0 .................. 57.09 |=======================================
Clang: -O1 .................. 32.34 |======================
Clang: -O2 .................. 37.29 |=========================
Clang: -O2 -march=native .... 36.22 |=========================
Clang: -O3 .................. 25.61 |=================
Clang: -O3 -march=native .... 25.20 |=================
Clang: -Ofast -march=native . 20.64 |==============
GCC 4.8.5 20150623 .......... 10.10 |=======
GCC 4.8.5 run2 .............. 10.09 |=======
Redis 3.0.1
Test: GET
Requests Per Second > Higher Is Better
GCC: -O0 .................... 1663526.96 |====================
GCC: -O1 .................... 2953039.46 |===================================
GCC: -O2 .................... 3007445.96 |====================================
GCC: -O2 -march=native ...... 2951037.21 |===================================
GCC: -O3 .................... 2910194.79 |===================================
GCC: -O3 -march=native ...... 3116395.33 |=====================================
GCC: -Ofast -march=native ... 3023321.58 |====================================
Clang: -O0 .................. 1864548.29 |======================
Clang: -O1 .................. 3067218.96 |====================================
Clang: -O2 .................. 2962310.25 |===================================
Clang: -O2 -march=native .... 3102899.83 |=====================================
Clang: -O3 .................. 2923813.88 |===================================
Clang: -O3 -march=native .... 2862656.75 |==================================
Clang: -Ofast -march=native . 3100373.25 |=====================================
GCC 4.8.5 20150623 .......... 1363657.21 |================
GCC 4.8.5 run2 .............. 1359989.88 |================
Redis 3.0.1
Test: SET
Requests Per Second > Higher Is Better
GCC: -O0 .................... 1189110.86 |====================
GCC: -O1 .................... 2175575.75 |====================================
GCC: -O2 .................... 2136957.54 |===================================
GCC: -O2 -march=native ...... 2076614.15 |==================================
GCC: -O3 .................... 2183433.83 |====================================
GCC: -O3 -march=native ...... 2104521.04 |===================================
GCC: -Ofast -march=native ... 2243907.58 |=====================================
Clang: -O0 .................. 1263741.85 |=====================
Clang: -O1 .................. 1977929.48 |=================================
Clang: -O2 .................. 2127555.19 |===================================
Clang: -O2 -march=native .... 2064604.79 |==================================
Clang: -O3 .................. 1962280.52 |================================
Clang: -O3 -march=native .... 2037699.96 |==================================
Clang: -Ofast -march=native . 2078148.71 |==================================
GCC 4.8.5 20150623 .......... 1078008.79 |==================
GCC 4.8.5 run2 .............. 1081861.04 |==================