FreeBSD RAM Consumption Raises Eyebrows

A user reported that FreeBSD is using an unexpectedly large amount of system memory, likely due to its ZFS file system and caching mechanisms. This highlights a common misunderstanding about FreeBSD’s memory management, where RAM is actively used for performance but can appear as “missing” to users unfamiliar with the behavior. The issue serves as a reminder for admins to understand FreeBSD’s memory architecture before deploying it.

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