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Intel Haswell Memory Scaling With Ubuntu 14.04 + Linux 3.13

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Linux

After the recent tests of AMD's Kaveri APU with DDR3-800MHz to DDR3-2133MHz Linux memory testing and following up with AMD Kaveri DDR3-2400MHz testing on Ubuntu Linux, many Phoronix readers followed up with a request of new memory testing done on the Intel side. In this article are benchmarks of a Core i5 Haswell CPU looking at the CPU and graphics performance impact with memory frequency scaling on Ubuntu 14.04 with the Linux 3.13 kernel.

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Beignet is the project out of Intel's Open-Source Technology Center for exposing GPGPU/compute capabilities out of Ivy Bridge hardware and newer when using a fully open-source Linux stack. While Beignet differs greatly from Gallium3D's Clover state tracker, this Intel-specific open-source OpenCL implementation is working out quite well for Ubuntu Linux. While I've been writing about Intel's Beignet project since early 2013, it's probably been about a year now since I tried out the code, which is developed by Intel's OTC graphics team in China. This weekend I tried out Beignet v0.9.2 as trying out the newest Intel OpenCL code has been on my TODO list for a while and it's been working out rather well in my initial tests. Read more