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Is the MTVU hack working?
#1
I'll start with my system specs. They are:
CPU: Q6600 at 3.2Ghz
GPU: HD4870X2
RAM: 4GB DDR3 @ 1280Mhz

Anyway, I have PCSX2 svn 4942 with all speedhacks off except the MTVU hack enabled and I'm trying to play Dragon Quest VIII but notice I am still getting a LOT of slowdown (32 or less FPS). I looked at my CPU usage in the task manager and see that PCSX2 is only using 22% of my total CPU. I set the GPU scaling to "native" so I know I'm not overloading my video card so my question is whether MTVU is even working for me or is there something else about Dragon Quest VIII that causes a bottleneck on something that can't be threaded out.

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#2
what do the EE% and GS % say when you get those slowdowns ?
CPU : I7 2600K Oc'ed @ 4.2Ghz
Mobo : Intel P67 southbridge
GPU : NVIDIA Geforce GTX 750 Ti
RAM : 6 Go
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#3
some games doesnt like MTVU hack, probably get crashing ingame or slowdown, one game i already test and give slowdown fps is dawn of mana but almost games i have get positive impact and give boost fps.
Notebook ASUS A43TA|CPU AMD Llano APU A6-3400m Triple core (1 core disable) OC to 2.6+Ghz|GPU CF|HD 6520 400Mhz/667Mhz iGPU|HD6650M OC 780Mhz/985Mhz dGPU|RAM 8GB DDR3 1333|Windows 7 Ultimate Sp.1 x64 bit.
>> Emulation speed differs for each game. There will be some you can run fast easily, but others will simply require more powerfull hardware <<.
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#4
(10-22-2011, 04:02 PM)jesalvein Wrote: what do the EE% and GS % say when you get those slowdowns ?

EE% goes between 11% and 37%:
GS% goes between 10% and 28%:

What's odd is that during the title screen (which is an FMV), the EE% goes up to over 88% yet my framerate is fine.

I don't think the MTVU hack is the cause of the slowdown because the framerate is the same even with it disabled which is why I wondered whether it's even working for me.
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#5
When EE/GS and with MTVU VU threads aren't reaching 100% while you get a slowdown, most of the time you are GPU limited, decreasing internal res can help, worth trying toggling "allow 8bit textures" option too, both in GSdx config.
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#6
i haven't tested that game but mtvu works for most games..for others it won't..try what miseru99 said
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#7
Is there a way to scale it down even further than "native"?
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#8
Yes.

Enter a custom resolution below what is native to the game. (i.e. 384x384)
Native is typically like 640x480, but you can see what it is at the beginning of the game window's titlebar.
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#9
(10-23-2011, 10:15 PM)Rezard Wrote: Yes.

Enter a custom resolution below what is native to the game. (i.e. 384x384)
Native is typically like 640x480, but you can see what it is at the beginning of the game window's titlebar.

I found it but it makes absolutely no impact on the framerate. I get the same amount with even as low as 256x256 as I did with 2x the internal resolution.

Any other ideas? Could there be a timing related bug in the emulator causing the slowdown?
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#10
I have the rig in my sig and I used to get as low as 40FPS in-game...with MTVU, I get 60, at all times now. So it helped me, for sure.
Core i5 2500K @ 4.5GHZ, 8GB RAM 1866MHZ, AORUS 1080 Ti, 128GB Samsung 830 SSD + 1TB Samsung 850 Evo SSD +  2 1TB HDDs.) Windows 7 64-bit Professional
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