cache pressure 0 not working

[segator]

Hi guys I was trying to make works cache_dirs plugins but  when enabled always is scanning my disks with the find command so I disabled.

 

I was playing with cache pressure 0  in one server (non unraid) an works perfect first time ls -l -R take it's time but second and thirst time it's almost instant.

 

but when I set the sames values (cache presure 0 and swappiness) don't work always spin up disks and access to get the dir information with ls -l -R.. I want to avoid that applicaitons that scan directories spin up the drives.

 

I have 4GB of ram and when I use the ls -l -R first time when finish I get 2GB free

 

Ideas? thanks