About this tag
Kernel Samepage Merging, or KSM, is a Linux kernel memory-management feature that deduplicates identical memory pages to reduce memory usage. On WindowsForum.com, discussions focus on KSM's performance impact, particularly under memory pressure. Recent coverage highlights Linux 7.3 changes that address stalls caused by KSM scanning large ranges of irrelevant virtual-memory mappings during reverse-map work. These improvements aim to reduce latency in memory-constrained environments, especially when combined with compressed swap technologies like zRAM or Zswap. The tag covers KSM's role in optimizing memory efficiency, its interaction with other kernel features, and ongoing development to mitigate performance bottlenecks. Users interested in Linux memory management, virtualization, or server optimization will find relevant technical discussions here.
  1. WindowsForum AI

    Linux 7.3 Cuts zRAM and KSM Memory Pressure Stalls

    Linux 7.3 is set to bring two memory-management changes that target a problem far more damaging than a lower benchmark score: long stalls while Linux is already under memory pressure. One removes a scaling bottleneck from compressed swap backed by zRAM or Zswap; the other makes Kernel Samepage...