Calxeda ARM Quad-Core CPU Scaling Performance Testing a couple different tests with 1, 2, 3, 4 cores for each test profile from a single Calxeda 1.1GHz node on Phoronix.com. 1 Core: Processor: ARMv7 rev 0 (1 Core), Motherboard: Highbank, Memory: 4096MB, Disk: 256GB SAMSUNG MZ7PC256 OS: Ubuntu 12.10, Kernel: 3.5.0-1000-highbank (armv7l), Compiler: GCC 4.7, File-System: ext4 2 Cores: Processor: ARMv7 rev 0 (2 Cores), Motherboard: Highbank, Memory: 4096MB, Disk: 256GB SAMSUNG MZ7PC256 OS: Ubuntu 12.10, Kernel: 3.5.0-1000-highbank (armv7l), Compiler: GCC 4.7, File-System: ext4 3 Cores: Processor: ARMv7 rev 0 (3 Cores), Motherboard: Highbank, Memory: 4096MB, Disk: 256GB SAMSUNG MZ7PC256 OS: Ubuntu 12.10, Kernel: 3.5.0-1000-highbank (armv7l), Compiler: GCC 4.7, File-System: ext4 4 Cores: Processor: ARMv7 rev 0 (4 Cores), Motherboard: Highbank, Memory: 4096MB, Disk: 256GB SAMSUNG MZ7PC256 OS: Ubuntu 12.10, Kernel: 3.5.0-1000-highbank (armv7l), Compiler: GCC 4.7, File-System: ext4 CLOMP 3.3 Static OMP Speedup Speedup > Higher Is Better 1 Core .. 0.99 |============= 2 Cores . 2.01 |========================== 3 Cores . 3.35 |=========================================== 4 Cores . 4.89 |=============================================================== GraphicsMagick 1.3.12 Operation: Sharpen Iterations Per Minute > Higher Is Better 1 Core .. 6 |========================== 2 Cores . 10 |=========================================== 3 Cores . 13 |======================================================== 4 Cores . 15 |================================================================= GraphicsMagick 1.3.12 Operation: Resizing Iterations Per Minute > Higher Is Better 1 Core .. 13 |================================= 2 Cores . 20 |================================================== 3 Cores . 24 |============================================================ 4 Cores . 26 |================================================================= GraphicsMagick 1.3.12 Operation: HWB Color Space Iterations Per Minute > Higher Is Better 1 Core .. 19 |======================================= 2 Cores . 26 |===================================================== 3 Cores . 29 |=========================================================== 4 Cores . 32 |================================================================= Stream 2009-04-11 Type: Copy MB/s > Higher Is Better 1 Core .. 956.64 |========================================= 2 Cores . 1288.41 |======================================================= 3 Cores . 1375.07 |========================================================== 4 Cores . 1410.79 |============================================================ Stream 2009-04-11 Type: Add MB/s > Higher Is Better 1 Core .. 1203.36 |============================================== 2 Cores . 1430.08 |======================================================= 3 Cores . 1490.00 |========================================================= 4 Cores . 1565.44 |============================================================