PR #3351 introduced a performance regression
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And it got fixed again in 4.0-8672? Interesting...
Definitely a weird issue with the automated build system. It would be even more interesting to see if a "plain vanilla" VS2015u1 Win-x64 test build by someone else (not by the Dolphin auto-builder) fixes the huge performance regression mentioned in the other thread. Ishiiruka doesn't have that issue, so it must be a certain compiler flag / switch / script / optimization that was changed/modified or even a stupid typo error. 01-12-2016, 04:09 AM
If it's really a performance regression why nobody else can reproduce it?
Looks like you're either paranoid or the one needing a bug fix, not Dolphin
Avell A70 MOB: Core i7-11800H, GeForce RTX 3060, 32 GB DDR4-3200, Windows 11 (Insider Preview)
ASRock Z97M OC Formula: Pentium G3258, GeForce GT 440, 16 GB DDR3-1600, Windows 10 (22H2)
Update: Tested five different PR Test builds, all based on 4.0-8668 with trivial / mobile-only PRs that shouldn't affect the performance of the desktop version.
3 of them had the slowdown issue, 2 of them didn't. 01-15-2016, 04:15 AM
But there wasn't any compiler change or flag change recently, as far as I know from looking in the commits… How about trying it with a real benchmark like the povray? Running the builds several times, perhaps on several computers, building yourself to confirm that there's a regression? As it stands, it's hard to believe that completely unrelated changes affect performance.
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