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4Ghz Core 2 Duo vs M.A.M.E. 0.120 (benchmark results)

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TheManuel:
Well, this is not a MAME setting per se but a parameter that is set from a command prompt windows so I don't know if it could be taken care of from the MAME ini file.

taz-nz:

--- Quote from: tommy on November 12, 2007, 11:30:15 am ---I didn't read this whole thread. Did anyone find Gauntlet Legends to be anymore playable with a good dual processor PC?

--- End quote ---

-gauntleg          0.120u2 64bit   152.79%         87.09fps        (Core 2 Duo E6850 @ 4ghz)

Totally playable, but still tended to lock up at random in 0.120u2, not sure if this bug is fixed in 0.120u3.




Carnevil:
I am curious. Has anyone tried 120u3 with a quad core processor to see how well the new quad rendering in polynew.c works?
I plan on buying a Core2Duo real soon and I would like to know if I should go with a dual core or quad core.
Thanks

u_rebelscum:

--- Quote from: TheManuel on November 12, 2007, 11:22:07 am ---Is there a way to set the environment variable osdprocessor permanently in the registry or do we always have to set it before running mame to get the benefit?

--- End quote ---

Yes.
Not sure about Vista, but XP: open Control Panel, Open System, click the Advanced tab, click the Environment Variables button, click New in the System Variables (lower half).

AaronGiles:
Let's clear up some misinformation:

1. You don't need to set OSDPROCESSORS, unless you are debugging a problem. By default, MAME detects the number of processors in your system and uses that. The default implementation should be good. Leave it alone.

2. The -mt switch does not affect the multicore 3D acceleration. The multicore 3D code is enabled always. The -mt switch merely controls whether or not MAME uses a second thread to manage windows and blitting. Generally if you have multiple cores, this is a good thing; however, it is not enabled by default, so you will need to enable it in your mame.ini.

3. "Quad rendering" has nothing to do with quad core. The quad rendering functions mentioned in the latest whatsnew refer to rendering a polygon with 4 vertices (called a "quad").

4. The 3D acceleration code scales well to 2 processors. Above 2 you get diminishing returns, and at some point it will start to get slower rather than faster.

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