Meaning of available, free and buffered memory

FIXME: New version (at least 19.07.x) now use total available, used, buffered and cached in LuCi status overview

Issue: What is the difference of total available memory, free and buffered shown in LuCi status overview (or free on the command line)?


  • Total = free + buffered
  • Buffered = memory that is temporarily in use to handle I/O operations
  • Free = really free memory


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  • Last modified: 2020/09/05 19:15
  • by vgaetera