Docker vs KVM 2 x AMD Opteron 2376 HE testing with a IBM Server Blade and 128MB on Ubuntu 14.04 via the Phoronix Test Suite. docker: Processor: 2 x AMD Opteron 2376 HE @ 2.30GHz (8 Cores), Motherboard: IBM Server Blade, Memory: 16384MB, Disk: 4 x 1797GB 1814 FAStT + 147GB CBRBA146C3ETS0 N, Graphics: 128MB OS: Ubuntu 14.04, Kernel: 3.10.0-229.7.2.el7.x86_64 (x86_64), Compiler: GCC 4.8, File-System: ext4, Screen Resolution: 1024x768 KVM: Processor: 2 x AMD Opteron 23xx (Gen 3 Class Opteron) @ 2.30GHz (2 Cores), Motherboard: Fedora OpenStack Nova, Chipset: Intel 440FX- 82441FX PMC, Memory: 1 x 2048 MB RAM, Disk: 5GB, Graphics: Cirrus Logic GD 5446, Network: Red Hat Virtio device OS: Ubuntu 14.04, Kernel: 3.13.0-46-generic (x86_64), Compiler: GCC 4.8, File-System: ext4 RAMspeed SMP 3.5.0 Type: Add - Benchmark: Integer MB/s > Higher Is Better docker . 7311.02 |============================================================= KVM .... 5020.77 |========================================== RAMspeed SMP 3.5.0 Type: Copy - Benchmark: Integer MB/s > Higher Is Better docker . 7757.79 |============================================================= KVM .... 5755.88 |============================================= RAMspeed SMP 3.5.0 Type: Scale - Benchmark: Integer MB/s > Higher Is Better docker . 7255.77 |============================================================= KVM .... 5629.93 |=============================================== RAMspeed SMP 3.5.0 Type: Triad - Benchmark: Integer MB/s > Higher Is Better docker . 7010.51 |============================================================= KVM .... 4915.00 |=========================================== RAMspeed SMP 3.5.0 Type: Average - Benchmark: Integer MB/s > Higher Is Better docker . 7341.16 |============================================================= KVM .... 5350.69 |============================================ RAMspeed SMP 3.5.0 Type: Add - Benchmark: Floating Point MB/s > Higher Is Better docker . 8059.48 |============================================================= KVM .... 6413.80 |================================================= RAMspeed SMP 3.5.0 Type: Copy - Benchmark: Floating Point MB/s > Higher Is Better docker . 7725.36 |============================================================= KVM .... 5789.87 |============================================== RAMspeed SMP 3.5.0 Type: Scale - Benchmark: Floating Point MB/s > Higher Is Better docker . 7688.45 |============================================================= KVM .... 5795.74 |============================================== RAMspeed SMP 3.5.0 Type: Triad - Benchmark: Floating Point MB/s > Higher Is Better docker . 8194.50 |============================================================= KVM .... 6319.03 |=============================================== RAMspeed SMP 3.5.0 Type: Average - Benchmark: Floating Point MB/s > Higher Is Better docker . 7946.08 |============================================================= KVM .... 6069.90 |===============================================