FPS Issues with Super Mario Galaxy on 4.7 GHz

[Amon1995]

Oh right I see, but the thing is, the speed of the game is fine, it runs at 60fps all the way, I just get these sound crackling noises during gameplay, . Usually when it happens, the hard drive light is flashing, but it could be something else in Dolphin...

Have any of you had this issue before?

[AnyOldName3]

The first time each graphical effect is used, Dolphin needs to compile a shader to tell a PC GPU what the emulated GPU is trying to do. This takes a while, and can delay the frame from being displayed on time. The reason the disk LED flickers when this happens is that Dolphin writes a copy of the compiled shader to disk so that the next time it's needed it already has a copy ready. The actual write, though, takes a negligible amount of time in comparison to the compilation, so isn't a big issue.

[JosJuice]

It happens for most people. I wrote a bit more about it here: https://forums.dolphin-emu.org/Thread-prefetch-all-textures?pid=372640#pid372640

[Amon1995]

I tried Ishiiruka, but I still get the crackling and occasional stuttering . I tried the Full Async Shader Compilation setting as well, but that actually makes the crackling worse.

Also another quick question, when I load the custom textures for Super Mario Galaxy 2, it says something like: Custom textures prefetching aborted after 4034.6 mb, not enough RAM available.
But I have 8GB RAM, so should this message be displaying?

[JosJuice]

(05-30-2015, 07:11 AM)Amon1995 Wrote: Also another quick question, when I load the custom textures for Super Mario Galaxy 2, it says something like: Custom textures prefetching aborted after 4034.6 mb, not enough RAM available.
But I have 8GB RAM, so should this message be displaying?

The texture prefetching will abort when it uses up half of your total RAM, so that makes sense.

[Amon1995]

Oh right I see, so I basically need more RAM if I want to use that texture pack.

Also I'm planning on buying an SSD and using Dolphin on that. It should help the shader cache thing, and write to the drive much faster, which should make the stuttering very minimal or none at all.
The hard drive I have at the moment is quite slow anyway, so that's probably the reason why it's slowing Dolphin down.

[JosJuice]

(05-31-2015, 04:09 AM)Amon1995 Wrote: Also I'm planning on buying an SSD and using Dolphin on that. It should help the shader cache thing, and write to the drive much faster, which should make the stuttering very minimal or none at all.
The hard drive I have at the moment is quite slow anyway, so that's probably the reason why it's slowing Dolphin down.

An SSD will improve your PC performance in general, but not Dolphin's performance when running games. It will in particular not help with shader compilation. Dolphin has to wait until a shader is compiled, but it never has to wait for the hard drive to read or write shaders, because all shaders are stored in RAM when a game is running.

[Amon1995]

Is there any way I can improve the performance with the shader compilation then?