y KVM testing on CentOS Linux 7 via the Phoronix Test Suite. y: Processor: 8 x Intel Xeon E312xx (Sandy Bridge) (8 Cores), Motherboard: Red Hat KVM (Bochs BIOS), Memory: 16384 MB + 8192 MB RAM, Disk: 20GB, Graphics: cirrusdrmfb OS: CentOS Linux 7, Kernel: 3.10.0-693.11.6.el7.x86_64 (x86_64), Compiler: GCC 4.8.5 20150623, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM glibc bench 1.0 Benchmark: cos nanoseconds < Lower Is Better y . 64015.30 |================================================================= glibc bench 1.0 Benchmark: ffs nanoseconds < Lower Is Better y . 11.71 |==================================================================== glibc bench 1.0 Benchmark: sin nanoseconds < Lower Is Better y . 64958.80 |================================================================= glibc bench 1.0 Benchmark: sqrt nanoseconds < Lower Is Better y . 11.99 |==================================================================== glibc bench 1.0 Benchmark: tanh nanoseconds < Lower Is Better y . 34.78 |==================================================================== glibc bench 1.0 Benchmark: ffsll nanoseconds < Lower Is Better y . 11.58 |==================================================================== glibc bench 1.0 Benchmark: pthread_once nanoseconds < Lower Is Better y . 11.50 |====================================================================