Explore a 16-minute conference talk from FAST '22 that introduces NyxCache (Nyx), an innovative access regulation framework for multi-tenant persistent memory caching. Discover how Nyx supports light-weight access regulation, per-cache resource usage estimation, and inter-cache interference analysis. Learn about the implementation of crucial sharing policies such as resource-limiting, QoS-awareness, fair slowdown, and proportional sharing. Understand how Nyx resource-limiting accurately limits PM usage for each cache, providing superior performance isolation compared to bandwidth-limiting methods. Examine the QoS capabilities of Nyx, which ensure latency-critical caches receive guaranteed performance while allowing higher throughput for non-interfering best-effort caches. Gain insights into Nyx's practical applications, including its ability to isolate write-spikes and protect important caches from increased best-effort traffic slowdowns.