+Trebor Posted April 24, 2022 Share Posted April 24, 2022 5 hours ago, Revontuli said: I may ask about this is a more focused post, but while performance *seems* okay on both BupSystem and the Concerto, A7800 sometimes gives a graphical "stutter" - It doesn't *seem* to be related to how busy the game is (i.e. performance as such, it happens at intervals unrelated to, say, how many enemies are on the screen), and it might be something similar to what I ran into with Dragon's Havoc, where a slight mismatch in game and display framerates "catches up" at regular intervals. As I said, it still seems to run OK on the Concerto, but I'll be testing more on A7800 (and the Dragonfly, once I get the power supply figured out) as I try my hand on including POKEY sound. Running the new Developer Mode machines under A7800 (Version 5.0 and newer), can make definitive whether or not it is related to DMA utilization. If DMA is not the issue, it may be worthwhile to try -waitvsync or -triplebuffer options from CL to see if it is video (driver)/refresh rate related. Alternatively, each one can be permanently set under 7800.ini. From: waitvsync 0 To: waitvsync 1 ...OR... From: triplebuffer 0 To: triplebuffer 1 However, do not enable both. Just one or the other. A7800 defaults to window mode, and in window mode waitvsync should be utilized. If waitvsync is turned on, A7800 will utilize more of your system's CPU waiting for the proper time to draw. The option waitvsync does not work with "-video gdi" mode. In full screen mode, triplebuffer should be utilized; leverage waitvsync instead, only if triplebuffer does not remove the tearing/stutter, or if you swap between full screen and window modes. As an additional check, press F11 to bring up the performance percentage/frame rate counter. If that dips below 100% there is a setting and/or performance issue for A7800 running on that particular system. If a performance issue is noticed, try changing the video setting to 'auto' under the a7800.ini file's "OSD VIDEO OPTIONS" section to see if performance improves. # OSD VIDEO OPTIONS # video auto 3 1 Quote Link to comment Share on other sites More sharing options...
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