How to fix write latency on Samsung 9100 PRO 2TB?
The screen just hitched for 0.1 seconds the moment I entered the ruins. In an exploration game, that kind of jank is a total disaster. Looking at the logs, the Samsung 9100 PRO 2TB has terrifying PCIe 5.0 bandwidth, but it was hitting peak latency spikes of 25 - 32ms during temp cache writes. I tried forcing the PCIe protocol to 4.0 in the BIOS, but that was a complete waste of time—bandwidth dropped, but the stutters stayed. I finally grabbed the 1.0.8 firmware update and disabled the Windows write cache flushing policy. Using RTSS, I watched the frame time flatten from a wild 12 - 30ms swing down to a smooth 7 - 10ms. I actually had a firmware install fail that made the drive disappear for a second, which was terrifying, but swapping M.2 slots fixed it. The drive is running at 55 - 62℃, and the heatsink is just barely warm. After three stress tests, the read/write curves are flat, and memory temps are holding at 58 - 63℃.
