fedora-bare-metal-vs-kvm Intel Core i7-4500U testing with a Dell 0YK7DY and Intel Haswell-ULT IGP 2048MB on Fedora 23 via the Phoronix Test Suite. 2core/1vm: Processor: 2 x Westmere E56xx/L56xx/X56xx (Nehalem-C) @ 2.39GHz (2 Cores), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 2048MB, Disk: 9GB, Graphics: Red Hat QXL paravirtual graphic card, Audio: QEMU ID 22, Network: Red Hat Virtio device OS: Fedora 23, Kernel: 4.3.5-300.fc23.x86_64 (x86_64), Compiler: GCC 5.3.1 20151207, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM 1core/1vm: Processor: Westmere E56xx/L56xx/X56xx @ 2.39GHz (1 Core), Motherboard: QEMU Standard PC (i440FX + PIIX 1996), Chipset: Intel 440FX- 82441FX PMC, Memory: 2048MB, Disk: 9GB, Graphics: Red Hat QXL paravirtual graphic card, Audio: QEMU ID 22, Network: Red Hat Virtio device OS: Fedora 23, Kernel: 4.3.5-300.fc23.x86_64 (x86_64), Compiler: GCC 5.3.1 20151207, File-System: xfs, Screen Resolution: 1024x768, System Layer: KVM bare metal: Processor: Intel Core i7-4500U @ 3.00GHz (4 Cores), Motherboard: Dell 0YK7DY, Chipset: Intel Haswell-ULT DRAM, Memory: 8192MB, Disk: 1000GB Seagate ST1000LM024 HN-M, Graphics: Intel Haswell-ULT IGP 2048MB (1100MHz), Audio: Intel Haswell-ULT HD Audio, Network: Realtek RTL8101/2/6E + Qualcomm Atheros QCA9565 / AR9565 OS: Fedora 23, Kernel: 4.3.5-300.fc23.x86_64 (x86_64), Desktop: GNOME Shell 3.18.3, Display Driver: intel 2.99.917, OpenGL: 3.3 Mesa 11.1.0 (git-525f3c2), Compiler: GCC 5.3.1 20151207, File-System: ext4, Screen Resolution: 1366x768 SciMark 2.0 Computational Test: Composite Mflops > Higher Is Better 2core/1vm .. 999.10 |======================================================= 1core/1vm .. 984.59 |====================================================== bare metal . 1030.23 |=========================================================