Yuzu Emulator - The Async GPU Update | 40 - 400% Performance Improvements

Channel:

BSoD Gaming

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166,000

Published on March 12, 2019 8:48:18 PM ● Video Link: https://www.youtube.com/watch?v=n-fElYfNmYo

Game:

The Legend of Zelda: Breath of the Wild (2017)

Category:

Vlog

Duration: 13:15

115,641 views

2,003

Yuzu, an emulator for the Nintendo Switch has received a New Update to its Asyncrous GPU emulation, that has Significany boosted the performance of practically every game

Support Yuzu Emulator Development
https://www.patreon.com/yuzuteam

Detailed Explaination of these New Changes.

► Completely rewriting the asynchronous GPU implementation.

Now, we synchronize the CPU and GPU less often, but more consistently. This makes the whole process faster, and in turn has some major effects. For one, it fixes the physics in Breath of the Wild, as well as increases the games performance dramatically. It also fixes several performance regressions you may have noticed in games like Super Mario Odyssey, Puyo Puyo Tetris, and several other games.

► Completely rewriting our GPU Virtual Memory Manager

Previously, our GPU memory manager was just a wrapper around the guest CPU address space. Instead, we use a page table and memory manager design similar to the CPU. This allows for faster lookup, and will allow us to more accurately emulate the GPU memory layout.

► Updated the rasterizer cache mechanisms to use host address for cache keying instead of guest CPU address

Using the CPU address for cache keying was made necessary by the design of our old GPU VMM (above), but does not make a ton of sense from a design perspective. Using host address is equivalent for our purposes, and allows us to avoid tons of unnecessary GPU-to-CPU address translations. In short, this increases performance for the emulator as a whole.

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