How to fix I/O queue congestion on Fanxiang S910Max 1TB?
When infiltrating enemy bases, the real-time streaming of map data puts an insane load on the S910Max, causing response times to spike from 0.1ms to a brutal 18-25ms, which creates visible screen tearing. This PCIe 5.0 drive struggles with massive fragmented files because the default queue depth settings trigger command blocking in certain environments. I initially tried disabling the write cache at the system level, but that was a total disaster—it didn't stop the stutters and actually added 4 seconds to the load times, which was beyond frustrating. I eventually dove into the advanced driver panel, swapped the I/O scheduler to High-Performance Queue mode, and adjusted the IRQ priority. In CrystalDiskMark random 4K tests, read latency dropped to 12-15ms, and the in-game hitching mostly vanished. I did hit a brief system deadlock right after the first tweak, but locking the PCIe link speed to Gen5 mode fixed it. The drive hovered between 52-61℃, and the heatsink felt warm to the touch. Benchmarks show the throughput curve is finally flat, with frame times stabilizing at 5.1-6.4ms.
