Fixing WD SN850X I/O scheduling for Dragon's Dogma 2?
Every time I stepped into a crowded town, the screen would tear in a way that felt genuinely unstable, and it was driving me crazy. Even though the SN850X is a beast, the game's fragmented asset loading caused the I/O queue depth to swing wildly between 1 and 32. I tried moving the game to a SATA SSD to compare, but loading took three times longer and the tearing actually got worse, proving this had to be fixed at the NVMe level. I went into Device Manager, disabled the write cache flush option, and locked my virtual memory to a static 16GB range. Using a frame time analyzer, those 20-50ms read spikes were crushed down to 12-18ms. I actually messed up and set the page file to 'None' during the process, which caused an immediate crash—definitely a reminder to be careful. Temps are 45-52℃ now, and the tearing is completely gone.
