Performance Increase

[shadowfax1007]

Is there anything else I can do to increase the emulation performance of the Raspberry Pi, running RetroPie?

I’ve overclocked it, I’ve switched to the generally better regarded emulators like PiSNES. I read somewhere that someone forced 720p instead of running in 1080p to get better performance. Would that be beneficial? If so, how would I go about doing that?

[retrofredde]

You can edit the /boot/config.txt file to have the pi running in lower resolution. I’m not sure if it’s just the CLI that run in lower res though, I have mine set to 1280×720 and I haven’t seen any performance differences worth mentioning but the CLI text is readable now. I get full speed in Snes games though with the CPU clocked to 1000 mhz, without using shaders.

[kitchuk]

As refrofredde said try go in into the config.txt and changing the resolution to a lower scale. Mine is set to VGA mode at 4:3 aspect ratio.

[kitchuk]

This could be helpful: https://github.com/retropie/RetroPie-Setup/wiki/Advanced-Configuration

[shadowfax1007]

[quote=4907]This could be helpful: https://github.com/retropie/RetroPie-Setup/wiki/Advanced-Configuration[/quote]

Cheers. Working non-stop all weekend, but I’ll give it a crack on monday

[gizmo98]

You could optimize some files. I don’t know if performance increases.

retropie-setup.sh, line 37
—————–
old: __default_cflags=”-O2 -pipe -mfpu=vfp -march=armv6j -mfloat-abi=hard”
new: __default_cflags=”-Ofast -pipe -mfpu=vfp -march=armv6zk -mfloat-abi=hard -mtune=arm1176jzf-s”

(According to http://elinux.org/RPi_Software)

scriptmodules/emulators.shinc, line 791
—————————————
old: ./configure –prefix=”$rootdir/emulators/RetroArch/installdir”
new: ./configure –prefix=”$rootdir/emulators/RetroArch/installdir” –disable-x11 –disable-oss –disable-pulse –enable-floathard

(According to http://www.raspberrypi.org/phpBB3/viewtopic.php?t=56070)

I have only tested pocketsnes and retrarch core. Delete RetroPie/emulators/RetroArch and RetroPie/emulatorcores/PocketSnes and do a source based installation.

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