Edit: Bug post filed per recommendation at https://code.google.com/p/dolphin-emu/is...il?id=8441
I've been doing some experimenting after noticing some major FPS stuttering during "Brawl-mode character-select" in Super Smash Brothers Brawl with the latest development builds. However this issue did not happen with the latest stable build. I believe I've tracked down the exact issue by testing until I found the first build where the issue happens.
4.0-1603 did not have this performance issue
4.0-1609 had clear symptoms of the issue just like the latest version does
The only thing that appears to have changed during these builds is how the EFB functions ( https://github.com/dolphin-emu/dolphin/pull/331 )
Symptoms: Performance drops to about 80% (50ish fps, sound stuttering, etc) when in SSBB character select. Other common parts of the game seem to be fine (no stutter) though since FPS capped at 60 there might be unknown performance decreases in other areas.
Workaround/Solution: Setting Anti-Aliasing to "4x" instead of "4x SSAA" seems to solve the issue, though it may just be helping enough to get over 60 FPS? Perhaps there is no issue other than "4x SSAA" simply being incompatible with the EFB changes?
I've been doing some experimenting after noticing some major FPS stuttering during "Brawl-mode character-select" in Super Smash Brothers Brawl with the latest development builds. However this issue did not happen with the latest stable build. I believe I've tracked down the exact issue by testing until I found the first build where the issue happens.
4.0-1603 did not have this performance issue
4.0-1609 had clear symptoms of the issue just like the latest version does
The only thing that appears to have changed during these builds is how the EFB functions ( https://github.com/dolphin-emu/dolphin/pull/331 )
Symptoms: Performance drops to about 80% (50ish fps, sound stuttering, etc) when in SSBB character select. Other common parts of the game seem to be fine (no stutter) though since FPS capped at 60 there might be unknown performance decreases in other areas.
Workaround/Solution: Setting Anti-Aliasing to "4x" instead of "4x SSAA" seems to solve the issue, though it may just be helping enough to get over 60 FPS? Perhaps there is no issue other than "4x SSAA" simply being incompatible with the EFB changes?