Emulation [RELEASE] Cemu - Wii U emulator

  • Thread starter Exzap
  • Start date
  • Views 7,241,515
  • Replies 21,664
  • Likes 284

myowfriend

Active Member
Newcomer
Joined
Dec 12, 2015
Messages
35
Trophies
0
Age
35
XP
97
Country
United States
@Exzap Why you don't use 2 cores?
Or 4 for more performance
no. too much cores can decrease performances

The Wii U has a CPU that has 3 cores. It's GPU contains the graphics cores, an audio processor, and a security and IO processor. In theory, CEMU could spread the work among 6 cores. Since the GPU, audio processor, and IO processor likely aren't actually emulated and only the API calls that access them are, it would probably be a waste to give them each there own core so it would realistically only make sense to use up to 4. Having any additional cores won't improve or decrease performance.

That doesn't mean it's necessarily easy to distribute the emulation work though as instructions still have to be read and translated in a series, before they would are sent out to the different cores.
 

Kirtai

Well-Known Member
Member
Joined
May 6, 2016
Messages
237
Trophies
0
XP
248
Country
United Kingdom
The Wii U has a CPU that has 3 cores. It's GPU contains the graphics cores, an audio processor, and a security and IO processor. In theory, CEMU could spread the work among 6 cores. Since the GPU, audio processor, and IO processor likely aren't actually emulated and only the API calls that access them are, it would probably be a waste to give them each there own core so it would realistically only make sense to use up to 4. Having any additional cores won't improve or decrease performance.
The real problem is how extremely costly synchronising multiple cores is.

That doesn't mean it's necessarily easy to distribute the emulation work though as instructions still have to be read and translated in a series, before they would are sent out to the different cores.
That's an understatement if ever there was one.
 

Alex S

Creator Of WWHDM, And Metroid Fusion XER0X!
Member
Joined
May 2, 2016
Messages
695
Trophies
0
Location
Hell
Website
www.erm.wut
XP
1,002
Country
United States
The Wii U has a CPU that has 3 cores. It's GPU contains the graphics cores, an audio processor, and a security and IO processor. In theory, CEMU could spread the work among 6 cores. Since the GPU, audio processor, and IO processor likely aren't actually emulated and only the API calls that access them are, it would probably be a waste to give them each there own core so it would realistically only make sense to use up to 4. Having any additional cores won't improve or decrease performance.

That doesn't mean it's necessarily easy to distribute the emulation work though as instructions still have to be read and translated in a series, before they would are sent out to the different cores.

Watttt the wii u is TRI-CORE?? How is it not exploding?? I though you had to use special code on any application if you dont have an even number of cores ;-;
 

Phil5004

Well-Known Member
Member
Joined
Jul 6, 2015
Messages
887
Trophies
0
Age
33
XP
499
Country
Germany
Does anyone know why I've got low FPS here? (Installed the Latest game Updates)
cd81871bad544ab2bbdbd8f4e16727ec.png
 

Alex S

Creator Of WWHDM, And Metroid Fusion XER0X!
Member
Joined
May 2, 2016
Messages
695
Trophies
0
Location
Hell
Website
www.erm.wut
XP
1,002
Country
United States
Does anyone know why I've got low FPS here? (Installed the Latest game Updates)
cd81871bad544ab2bbdbd8f4e16727ec.png

Well to start @Phil5004 your using the patreon 1.5.3,which doesn't have the bug fixes of the public build. And It depends on the age of your processor and gpu as to why you could be getting slowdown. Also game updates can potentially slow cemu down because it could have trouble with the new code in the updates/files and even crash a game due to that.i noticed that create mode seems to run at half the fps of the regular game for some odd reason. I assume its because it has to load in all the new ui elements. Try running SMM in play mode and see. Also if all else fails disable audio in debug options :P hope this helped :3
 
Last edited by Alex S,

Alex S

Creator Of WWHDM, And Metroid Fusion XER0X!
Member
Joined
May 2, 2016
Messages
695
Trophies
0
Location
Hell
Website
www.erm.wut
XP
1,002
Country
United States
Public Build = Patreon build, no changes what so ever.

Don't lie to people. There are changes. A lot of public builds have fixes their patreon counterparts do not. Especially 1.4.2 and 1.5.1 had them. Don't just instantly call me a liar with no real reason to do so.that's not very nice to phish for attention/post likes by calling other people's post's lies instantly.I'm sure you wouldnt like that if i did that to you, now would you?
 
Last edited by Alex S,

Iggin

New Member
Newbie
Joined
Jul 17, 2016
Messages
1
Trophies
0
Age
27
XP
51
Country
United States
Anyone know why Super Mario 3D World is flipped upside down when recording with OBS Studio? This doesn't happen with any other game I record.
15aca8b234.jpg
 

Alex S

Creator Of WWHDM, And Metroid Fusion XER0X!
Member
Joined
May 2, 2016
Messages
695
Trophies
0
Location
Hell
Website
www.erm.wut
XP
1,002
Country
United States
Anyone know why Super Mario 3D World is flipped upside down when recording with OBS Studio? This doesn't happen with any other game I record.
15aca8b234.jpg

It looks like your obs is totally screwed up. Even the preview window is Waaayyy darker than it should be. Try wiping the settings for obs or use nvidia shadow play perhaps?
 

Alex S

Creator Of WWHDM, And Metroid Fusion XER0X!
Member
Joined
May 2, 2016
Messages
695
Trophies
0
Location
Hell
Website
www.erm.wut
XP
1,002
Country
United States

That guy just doesn't understand cemu is single core and will probably stay that way until Exzap optimizes it. @Fryne don't you find it hilarious that the CEMU community can claim to know so much and still be misinformed?
 
Last edited by Alex S,

ElyosOfTheAbyss

Well-Known Member
Member
Joined
Aug 20, 2015
Messages
2,225
Trophies
1
XP
1,911
Country
It looks like your obs is totally screwed up. Even the preview window is Waaayyy darker than it should be. Try wiping the settings for obs or use nvidia shadow play perhaps?
It's not something to do with OBS as it also happens in bandicam. This can happen sometimes when trying to record sm3dw. As for why it happens idk.4
 
  • Like
Reactions: Alex S

KillzXGaming

Well-Known Member
Member
Joined
Jan 2, 2016
Messages
1,629
Trophies
0
Age
28
XP
1,618
Country
United States
Don't lie to people. There are changes. A lot of public builds have fixes their patreon counterparts do not. Especially 1.4.2 and 1.5.1 had them. Don't just instantly call me a liar with no real reason to do so.that's not very nice to phish for attention/post likes by calling other people's post's lies instantly.I'm sure you wouldnt like that if i did that to you, now would you?
i'm just pointing out facts that 1.5.3 patreon build is exactly the same, there is no changes at all nor bug fixes. If it was changed it would say "New in Public Release". Calling be a liar is BS, you're more like lying considering you said there are "bug fixes"
 
Last edited by KillzXGaming,
  • Like
Reactions: shanzo

RHY3756547

Well-Known Member
Member
Joined
Sep 1, 2014
Messages
235
Trophies
0
Age
28
XP
514
Country
That guy just doesn't understand cemu is single core and will probably stay that way until Exzap optimizes it. @Fryne don't you find it hilarious that the CEMU community can claim to know so much and still be misinformed?
Single core cpu emulation. OS and GX2 processing is done on other cores, as stated previously.
 
  • Like
Reactions: Esppiral

Site & Scene News

Popular threads in this forum

General chit-chat
Help Users
  • Julie_Pilgrim @ Julie_Pilgrim:
    sonic unleashed
  • K3Nv2 @ K3Nv2:
    Make it a happy meal toy
  • Julie_Pilgrim @ Julie_Pilgrim:
    that game's engine is really fucking intensive so it runs like literal shit on xbox 360 and ps3
  • Veho @ Veho:
    Nah I'm getting value creep again. I look at a $50 console "but for just a few more dollars you could get XYZ" and I end up considering the Steam Deck.
    +2
  • Julie_Pilgrim @ Julie_Pilgrim:
    like the lighting in that game was genuinely so good
  • Veho @ Veho:
    Not getting dragged into that again.
  • Julie_Pilgrim @ Julie_Pilgrim:
    i dont get why they didn't port the one game that ran the worst on consoles, to pc
  • Julie_Pilgrim @ Julie_Pilgrim:
    like you port everything to pc except the one game where it would make the most sense. why. what do you gain from this
  • Julie_Pilgrim @ Julie_Pilgrim:
    is sega just personally fucking with me? are they laughing while watching me through my kinect camera as i get up to restart my xbox for the third time because the game froze again
  • K3Nv2 @ K3Nv2:
    Buy handhelds from five below better quality
  • K3Nv2 @ K3Nv2:
    Valve probably going to do another refresh of the deck this fall with rog ally like specs tbh
    +1
  • Veho @ Veho:
    A smaller form factor would be nice too.
    +1
  • K3Nv2 @ K3Nv2:
    A shield portable 2 would be nice aye Nvidia
    +2
  • Psionic Roshambo @ Psionic Roshambo:
    The big leap in all things tech is when carbon based chips start hitting.
  • Psionic Roshambo @ Psionic Roshambo:
    Longer battery life cooler temps and faster! What's not to like lol (probably expensive as hell)
  • AncientBoi @ AncientBoi:
    [checks my dildo(s) batteries, coolant and lube] :O [promptly replaces them] :D
    +1
  • BigOnYa @ BigOnYa:
    Lol not even for sale yet to public, and already sold out. I'd like to get one but ill wait for the hype to calm down.
    +1
  • a_username_that_is_cool @ a_username_that_is_cool:
    I'm pretty sure I wasn't on GBAtemp at all yesterday, whenever I tried to go onto the website I got an unexpected database error
  • BigOnYa @ BigOnYa:
    We all teamed together and decided you needed a day off, so we blocked you.
    +1
  • Psionic Roshambo @ Psionic Roshambo:
    No one expects the database errors!!!
    +1
  • Psionic Roshambo @ Psionic Roshambo:
    Hey a thought occurred to me... If they are unexpected database errors, are there expected database errors?
    +1
    Psionic Roshambo @ Psionic Roshambo: Hey a thought occurred to me... If they are unexpected database errors, are there expected... +1