https://github.com/jnsnow/cachefilesd
Cache culling is done on the basis of the percentage of blocks and the
percentage of files available in the underlying filesystem. There are six
"limits":
(*) brun
(*) frun
If the amount of free space and the number of available files in the cache
rises above both these limits, then culling is turned off.
(*) bcull
(*) fcull
If the amount of available space or the number of available files in the
cache falls below either of these limits, then culling is started.
(*) bstop
(*) fstop
If the amount of available space or the number of available files in the
cache falls below either of these limits, then no further allocation of
disk space or files is permitted until culling has raised things above
these limits again.cachefilesdでNFSの読み込みを高速化する – スペース・アイ株式会社
EFS
Improving EFS Performance - DevCloud 2020
?
Based on the above tests, something is not right about cachefilesd. My test machine is a t3a.small running AmazonLinux2 4.14.123-111.109.amzn2.x86_64
