dolphin emulator not running at full speed

This simple change results in up to an 8% speed increase on AMD graphics cards compared to before the performance regression! Because NVIDIA cards do not even have the pinned memory extension, there is no plausible way this could make them slower again.Ĥ.0-2194 - Fix Static in Audio by phire ¶ In the end, they determined that AMD's Pinned Memory extension for buffer streaming did not suffer the slowdown, and was even faster than Buffer Storage for AMD graphics cards. Not wanting to add GPU specific code, Sonicadvance1 and degasus took some time to try to figure out a solution to make all video cards happy. Unfortunately, no one bothered to test AMD GPUs, because there is really no logical reason why Coherent Mapping would make them go faster, right? It turns out that disabling coherent mapping caused a 30% performance regression to AMD video cards now. This seemed like a win-win situation, and everyone shook hands over a job well done. Turning it off caused no performance hit on newer NVIDIA video cards and sped up the older ones considerably. Last month, a fix was merged to address a 30% performance regression on certain older NVIDIA GPUs due to coherent mapping being enabled needlessly.

Nevertheless, in the sea of code improvement, there are some real treasures: big performance improvements, some ancient bugs squashed, regression fixes, and some exciting new features to boot.Ĥ.0-2010 - Fix AMD Performance Regressions with Coherent Mapping Off by Sonicadvance1 ¶

This month was full of those, with several hundred changes yet very little the general user would find interesting.

All those boring code optimizations may make things easier for the developers and slowly improve the emulator, but hard-to-quantify changes are not exactly exciting. In programming users usually don't see or care about what's going on on the inside all that much.

Dolphin emulator not running at full speed