Debian 13's /tmp Moves to tmpfs: Speed and Challenges
2025-08-29
Debian 13 revolutionizes /tmp by moving it to the tmpfs in-memory filesystem, resulting in dramatically faster file access. However, this introduces challenges: users could consume significant RAM, impacting system performance. Debian defaults to a 50% RAM limit for tmpfs, but this is customizable. Furthermore, Debian 13 includes automatic cleanup, deleting unused files in /tmp after 10 days by default. For low-memory systems, users can easily disable tmpfs.
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