Intel HD Graphics On Linux 3.15 Brings Few Changes

With the GpuTest micro-benchmarks, the Plot3D test saw a large increase in performance (+35%) with the new Linux 3.15 kernel.

While the Plot3D test was running faster, Furmark saw its performance fall a bit under the Linux 3.15 kernel for the HD Graphics 4600 on the Core i7 4770K CPU.

Overall these results aren't too interesting for the Linux 3.15 kernel when it comes to Haswell graphics, but in a few cases there were some slight performance changes as illustrated above. At least Linux 3.15 betters off the Broadwell support, there's now per-process address space support for better security, and a variety of fixes and other improvements that landed for this kernel cycle.