can this tool contrl the size of page cache???

hoytech / vmtouch

Portable file system cache diagnostics and control

https://hoytech.com/vmtouch/

BSD 3-Clause "New" or "Revised" License

1.79k stars 210 forks source link

can this tool contrl the size of page cache??? #65

Open kaikai-sk opened 6 years ago

kaikai-sk commented 6 years ago

I wanna setup a expiriment. I modified the linux kernel source code. I wanna control the size of page cache. Is this tool useful??^_^

hoytech commented 6 years ago

On linux (and most OSes) the page cache will grow and shrink depending on how much memory is needed for other things. This tool is useful for figuring out which files are present in the page cache, and getting the OS to add or remove files from the page cache. Without more details about what you are trying to accomplish, it is hard to say whether vmtouch will be useful for you.