tag

#shared-memory

3 posts

FreeBSDDeep Dive October 4, 2026 8 min read

FreeBSD POSIX Shared Memory and Named Semaphores: Lifecycle Without Races

Create, map, synchronize, inspect, and retire FreeBSD POSIX shared-memory objects with explicit sizing, permissions, error handling, and recovery.

#freebsd#posix#shared-memory

LinuxDeep Dive October 3, 2026 7 min read

Linux memfd File Seals: Immutable Shared Data Without a Pathname

Publish Linux memfd data safely with file seals, understand writable mappings and descriptor transfer, and distinguish immutable blobs from secret memory.

#linux#memfd#file-descriptors

WSLDeep Dive October 3, 2026 7 min read

Shared Memory in WSL 2: /dev/shm, tmpfs, and Application Limits

Measure WSL 2 shared-memory capacity at the mount and process layers, then size workloads without mistaking tmpfs for durable disk.

#wsl#shared-memory#tmpfs