Major Performance Improvement Discovered For Intel's GPU Linux Driver

An anonymous reader writes: LunarG, on contract with Valve Software, discovered a critical shortcoming with the open-source Intel Linux graphics driver that was handicapping the performance. A special bit wasn't being set by the Linux driver but was by the Windows driver, which when enabled is increasing the Linux performance in many games by now ~20%+, which should allow for a much more competitive showing between Intel OpenGL performance on Windows vs. Linux. However, the patch setting this bit isn't public yet as apparently it's breaking video acceleration in certain cases.

Comments

Re:Benchmark Bit

[UnknowingFool]

Also most likely the Linux drivers are written by different people than the Windows or OS X drivers so there are probably so noted differences in the coding. Some of the differences are due to APIs. Procedurally there would be practical reasons to keep driver development separate. There may be some NDA stuff on the proprietary side that Intel has to maintain with the OS.