Per-game ubershader settings

themanuel · 01-07-2020, 01:08 PM #1

MP3 (MPT) stutters horribly on my system, even with ubershaders, and I find that skip drawing works best.

Would this be the correct syntax to set it in this game's ini only?
[Video_Settings]

ShaderCompilationMode = 3

**JosJuice** · 01-07-2020, 07:32 PM #2

I think that's correct, yes.

themanuel · 01-08-2020, 02:36 AM #3

Thank you. I asked because I did not see it here and that list is usually kept up to date.

**JosJuice** · 01-08-2020, 02:42 AM #4

It hasn't been updated in two years and is missing some settings.

themanuel · 01-08-2020, 02:58 AM #5

Whoops, you are right. I used to consider that the master list, but now it looks like the various per-game ini settings are housed in the wiki, and seems more up to date.

Perhaps it is time to unpin that thread that served us well all those years.

themanuel · 01-10-2020, 03:42 AM #6

How can I monitor dolphin's actions to determine what is causing the stuttering in my case?

At first I had assumed shader compilation was the cause, but when I started using the skip drawing feature, I realized that the stutters don't necessarily coincide with shader compilation events. Sometimes I see missing graphics elements pop up, presumable during shader compilation, but the emulation continues smoothly without stutters. The stutters themselves are sometimes full 1-2 second pauses in the emulation.

**JosJuice** · 01-10-2020, 03:56 AM #7

If you have turned on Speed up Disc Transfer Rate in the per-game settings, turn it off.

themanuel · 01-10-2020, 09:30 AM #8

(01-10-2020, 03:56 AM)JosJuice Wrote: If you have turned on Speed up Disc Transfer Rate in the per-game settings, turn it off.

It does the same with speed-up disc transfer rate on or off. In fact, with it off, I get the stutters AND the slow transition between rooms, for additional aggravation.

I have tried a number of parameters and hacks on/off with the same result, with and without custom textures, and with all the different back-end's. I ran out of things to try so I figured I ask here how to possibly isolate the issue, and determine if the stutter has anything to do with the shader cache, or if it is something else.

**Craftyawesome** · 01-10-2020, 11:32 AM #9

View -> show log and log configuration. Set to error and check IBM CPU (PowerPC)
Watch for "Core\PowerPC\Jit64\Jit.cpp:739 W[PowerPC]: flushing main code cache, please report if this happens a lot"

That will be at least some of the freezes. See if it is most of them.

themanuel · 01-10-2020, 12:38 PM **#10**

(01-10-2020, 11:32 AM)Craftyawesome Wrote: View -> show log and log configuration. Set to error and check IBM CPU (PowerPC)
Watch for "Core\PowerPC\Jit64\Jit.cpp:739 W[PowerPC]: flushing main code cache, please report if this happens a lot"

That will be at least some of the freezes. See if it is most of them.

I did this and play for several minutes. I ran into some moderate pauses and some other minor stutter but nothing was registered in the log.
Does that mean that nor errors were encountered?
Should I pick a different verbosity type?

The stutters have started to become a bit less frequent, since I seem to be building more of the cache, but there is still the occasional long pause, and quite a bit of lesser stuttering.