Share some of my finding with DCS MT, 7950x3d,4090
I raise the max frame limit to 300 fps, select 1080p resolution (to remove gpu bottle neck), 2d, mostly high setting, 2xMSAA
Measure F-16 Ramp start, Caucasus
Using process lasso, force DCS MT on either cache or high freq cores.
1. cache cores, average fps 266
2. high freq cores, average fps 220
So x3d cache does help maybe 20% when CPU bound.
Secondly, core parking does work with DCS MT
If I disable process lasso, most of the process are in cache cores, however, DCS seems to span too many thread, and some of them are wake up parked high freq cores, and was put there.
However, average fps are still around 266, 1% low are also similar. at 126 fps, it is possible that those thread that on high freq cores are not in heavy communication with main thread, so moving them in to high freq core won't incur cross ccd penalty that much.
Conclusion:
1. Not worth to use process lasso or tinker around, since majority of the usage are still on cache cores, just play the game normally.
2. x3d cache does help when GPU is not bottle neck.