linux - Does the memory used by tmpfs can be recycled just like page cache? -


i using tmpfs /tmp directory. however, when add files, output of free -h shows cached column value increase well.

however, wondering page cache usage info added cached. memory used files in /tmp directory can recycled when lack of memory page cache.

as said in kernel tmpfs:

size: limit of allocated bytes tmpfs instance. default half of physical ram without swap. if oversize tmpfs instances machine deadlock since oom handler not able free memory.

it said tmpfs memory can not recycled.


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