slybunda
Posts: 3
Joined: Wed Oct 13, 2021 7:02 pm

Slow performance with HLSL?

hello all, iv got mame running on a pentium 4 531 3ghz cpu, 3gb ram and Nvidia GT310 card.
in Teenage Mutant Ninja Turtles with HLSL turned on emulation speed drops to around 70%. i changed the cpu to a p4 925 dual core and there was no change in framerate game still runs at around 70% of true speed.
could this be an issue with the graphics card? os is windows 7 64bit. pic of graphics card stats attached.

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Tafoid
Posts: 295
Joined: Thu Nov 06, 2014 12:50 pm
Location: USA
Contact: Website

Re: Slow performance with HLSL?

slybunda wrote:
Thu Oct 14, 2021 11:58 am
hello all, iv got mame running on a pentium 4 531 3ghz cpu, 3gb ram and Nvidia GT310 card.
in Teenage Mutant Ninja Turtles with HLSL turned on emulation speed drops to around 70%. i changed the cpu to a p4 925 dual core and there was no change in framerate game still runs at around 70% of true speed.
could this be an issue with the graphics card? os is windows 7 64bit. pic of graphics card stats attached.

Your presumption very likely correct. HLSL performance is tied almost entirely to the fitness and capability of the graphics card/adapter. Your CPU also seems to be on the edge of not being able to get 100% if I had to guess. I'd say not using HLSL is your only choice, perhaps adding a simple "-effect scanlines.png" (edit mame.ini, adding "scanlines.png" to the effect line) to fake the scanlines is your only recourse.

slybunda
Posts: 3
Joined: Wed Oct 13, 2021 7:02 pm

Re: Slow performance with HLSL?

Yes using standard scanlines method works good. Im gonna have to see i can run mame in a window and then use gpuz to monitor gpu usage and see if its pegged at 100%.
Cpu usage remains low on the games i have tested so far. Cps1 and neogeo stuff.

slybunda
Posts: 3
Joined: Wed Oct 13, 2021 7:02 pm

Re: Slow performance with HLSL?

dont know why the pic didnt upload last time. heres trying again.

so attaching to this forum doesnt work, here is hosting attempt:

Image

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