Why is the Ryzen 7 9700X stuttering in Primal Carnage game?
This game engine is practically a fossil. Putting a multi-core beast like the 9700X into it is just asking for trouble—the thread scheduling is completely haywire. I was seeing scheduling delays of 1.5-2.2ms, which caused my frame times to jump erratically between 8ms and 45ms. I tried setting the process to 'High Priority' in Task Manager, but that actually made the stutters worse; it was a total waste of time. I eventually went into the BIOS, disabled SMT (Simultaneous Multithreading), and locked the core clock at 5.2GHz. Looking at the RivaTuner frame time graph, that jagged mess of a line turned into a smooth straight path, and the micro-stutters vanished. One downside: after disabling SMT, my CPU usage spiked whenever I had a browser open in the background, until I manually reassigned the core affinity. Temps stayed chill between 65-72℃. I exported the scheduling logs to verify the fix, and my fans stayed steady at 1400-1600RPM.
