glibc benching Intel Core i7-7900X testing with a MSI X299 SLI PLUS (MS-7A93) v1.0 and AMD Radeon RX 470/480/580 8192MB on Ubuntu 17.04 via the Phoronix Test Suite. Intel Core i7-7900X: Processor: Intel Core i7-7900X @ 4.50GHz (20 Cores), Motherboard: MSI X299 SLI PLUS (MS-7A93) v1.0, Chipset: Intel Device 2020, Memory: 16384MB, Disk: 240GB Force MP500, Graphics: AMD Radeon RX 470/480/580 8192MB, Audio: Realtek Generic, Monitor: DELL P2415Q, Network: Intel Connection OS: Ubuntu 17.04, Kernel: 4.10.0-26-generic (x86_64), Desktop: Unity 7.5.0, Display Server: X Server 1.19.3, Display Driver: amdgpu 1.3.0, OpenGL: 4.5 Mesa 17.0.3 Gallium 0.4 (LLVM 4.0.0), Vulkan: 1.0.3, Compiler: GCC 6.3.0 20170406, File-System: ext4, Screen Resolution: 3840x2160 glibc bench 1.0 Benchmark: ffs nanoseconds < Lower Is Better Intel Core i7-7900X . 4.65 |=================================================== glibc bench 1.0 Benchmark: sqrt nanoseconds < Lower Is Better Intel Core i7-7900X . 12.78 |================================================== glibc bench 1.0 Benchmark: tanh nanoseconds < Lower Is Better Intel Core i7-7900X . 41.59 |================================================== glibc bench 1.0 Benchmark: ffsll nanoseconds < Lower Is Better Intel Core i7-7900X . 4.63 |=================================================== glibc bench 1.0 Benchmark: pthread_once nanoseconds < Lower Is Better Intel Core i7-7900X . 5.41 |===================================================