Performance FAQ
From Jnes
| Jnes User Manual |
| Performance FAQ |
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How can I
speed Jnes up, I have a slow sytem, any frame skipping option?
Frameskipping is not implemented as I don't believe in this method to achieve speed.. you can try turning sound off entirely, or individual channels, this might help sound generation can get intensive on some PCs .. on most slow PCs the biggest bottleneck for Jnes can be the video card, run 16-bit color for the fastest performance, and do not use any zoom modes. Download the latest video drivers for your PC, and latest version of DirectX from Microsoft which installs those.
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I meet the system requirements
but for some reason Jnes slows down so much that running mapper 9 (MMC2) games
is impossible why is this?
MMC2 or MMC4 games actually raise the system requirement because this mapper uses a sophisticated technique to enhance graphics.
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Which is faster, keyboard
reading or joypad reading?
Keyboard reading is faster, joypad polling slows down the emulation ~8 fps.
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I have problems with triple
buffering, any suggestions?
Triple buffering is great in full screen, however there are limitations of this mode. You must have a computer capable of running Jnes fast enough to allow triple buffering to take place, it has to wait till vertical blank to flip the screen, this is quite expensive.