Radeon R9 390 8GB (Radeon Software 16.5.2.1, default driver settings except OpenGL triple buffering enabled).
Isolate the emulator/game part of the input lag from the rest of the system, in order to see how much lag they actually contribute with and if there are any meaningful differences between emulators.Look at what sort of input lag that can be expected from RetroArch in Windows 10.Look at what sort of input lag that can be expected from RetroPie and if it differs between the OpenGL and Dispmanx video drivers.So, having improved the test rig, I decided to re-run some of my previous tests (and perform some additional ones). Recording at 240 FPS, combined with the LED-rigged controller, provides for much quicker and more accurate measurements than previously. Additionally, I took the decision to postpone any further testing until I got my new phone, an iPhone SE, which is capable of 240 FPS recording. I’ve also spent some time on modifying a USB SNES replica with an LED, to get more accurate readings. First of all, I simply haven’t had much time to spare (and this testing is pretty time consuming). It’s time for an update (and it’s a hefty one)! I’ve been laying low lately, due to several things. The old test comes at the end of this post after the text “OLD POST BELOW”. The new test was first posted here (link) in this thread, but I’ve chosen to paste it into this post as well. Since performing my original tests, I’ve improved the test methodology and posted a better test.
Important update concerning inherent emulator lag: An input lag investigation Important update concerning Nestopia and fceumm: An input lag investigation Important update concerning the “Frame Delay” setting in RetroArch and calculations on how much room for improvement there actually is compared to a real NES: An input lag investigation Test of input lag with Vulkan backend compared to OpenGL: An input lag investigation Test of higan v101 vs RetroArch: An input lag investigation Recommendations for low input lag in RetroArch: An input lag investigation Input lag on real SNES console on a CRT TV: An input lag investigation Tests of SNES Classic Mini controller connected to PC using Raphnet’s low-latency USB adapter: An input lag investigationĪdditional tests showing effect on input lag from using shaders and from the new raw input driver : An input lag investigation Tip: Start reading this post at “UPDATE June 17th 2016” below and then continue with the newer updates.
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