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Significant Input lag from the FBE #702

Closed false-9 closed 6 years ago

false-9 commented 6 years ago

mupen64plus-gui build May 18 2018 Plugin: GlideN64

When disabling FBEmulation, input lag is reduced significantly in games. It emphasises how unresponsive some games are with FBE enabled, Ocarina of Time for example has roughly 10-11 frames of input latency with FBE on, and around 6-7 frames with it off. This is measured while excluding display, peripheral or any other external lag.

Likewise, on Mario 64, I measured ~6 frames of latency with FBE on and 0 latency with FBE off. Can the FBE be improved to reduce input latency?

Specs: i7 3770k, Nvidia GTX 670, 16GB RAM