How to fix I/O blocking on Samsung 9100 PRO 8TB SSD?
While pulling off high-speed combos and switching scenes, I noticed these erratic 0.2s hitches that completely kill the flow. Even though the Samsung 9100 PRO 8TB is a beast on paper, HWiNFO showed the I/O queue depth swinging wildly between 32 and 128 when handling fragmented assets. I wasted some time disabling background indexing services, but that only shaved off 0.1s from load times—basically useless. The real fix was using a partition manager to force 4KB alignment and locking the queue depth to 64 in the driver panel. After that, RTSS showed my frame times tightening from a messy 12-30ms down to a rock steady 8-12ms. Funnily enough, I tried pushing the queue depth to 256 first, and the whole system just hard-locked during a write peak. Once I backed it off to 64, it became stable. Drive temps sat between 58-64℃ with the heatsink at 42℃. Verified with CrystalDiskMark that random R/W is peaking, and those 8-12ms frame times are now consistent.
