Tag
demand-paging
- Sep 11, 2026 Post-Copy Migration and Demand Paging from the Source Instead of shrinking the dirty set, post-copy moves the vCPUs first and faults memory back from the source on demand. It bounds downtime at the cost of fault latency and a source that cannot be released. virtualization
- Aug 11, 2026 Demand Paging and the First-Touch Fault What happens between mmap returning and a page becoming resident, the three fault outcomes a handler must distinguish, and why anonymous memory is zeroed lazily. memory systems
- Aug 15, 2025 First-Touch Costs in Demand-Paged Memory What a program actually pays when it writes to freshly allocated memory, and how page faults, zeroing, and transparent huge pages decide the bill. performance engineering