Toy Story 3 and MMU

Pimenov · (This post was last modified: 04-24-2021, 09:41 AM by Pimenov.)

I know that MMU is enabled by default in Toy Story 3. On builds before 5.0-540 it was disabled, and the game ran at full speed. If I disable it on the latest build, will it affect the game's stability? If it won't, is MMU defaulted by mistake in that game (like in NFS Most Wanted on builds between 5.0-6101 and 5.0-9275)?

**JMC47** · 04-24-2021, 03:10 PM #2

Toy Story 3 requires full MMU and always has. If you run it without full MMU, it will crash on boot, even in Dolphin 5.0.

Pimenov · 04-25-2021, 12:15 AM #3

(04-24-2021, 03:10 PM)JMC47 Wrote: Toy Story 3 requires full MMU and always has. If you run it without full MMU, it will crash on boot, even in Dolphin 5.0.

So why did it become so laggy in 5.0-540? Has that version broken it? How was it run at full speed in this video?
https://youtu.be/5jq_wN_e2kg

**JosJuice** · 04-25-2021, 12:24 AM #4

(04-25-2021, 12:15 AM)Pimenov Wrote: So why did it become so laggy in 5.0-540?

5.0-540 made MMU emulation more accurate (in a way which I don't believe Toy Story 3 needs, but which is needed for Star Wars: The Clone Wars on the GameCube).

(04-25-2021, 12:15 AM)Pimenov Wrote: Has that version broken it?

That the performance is lower than before does not mean that something is broken.

(04-25-2021, 12:15 AM)Pimenov Wrote: How was it run at full speed in this video?
https://youtu.be/5jq_wN_e2kg

That video was recorded on a system with an x86-64 CPU. Dolphin's ARM JIT is much slower than the x86-64 JIT for games that require full MMU emulation, as I have told you before.