Beholder take 45s to watch a dir

[whatacold]

Hi,

Just noticed a weird thing, that beholder takes 45s to watch a dir on
my pc, but it almost instantly finishes the job on another dir, is it
normal?

;;; below dirs are on different fs

(time (beholder/watch prn "/home/ken/tmp/"))
;; "Elapsed time: 43874.502804 msecs"

(time (beholder/watch prn "/tmp/"))
;; "Elapsed time: 148.206494 msecs"

In the meantime, I'm trying to figure it out using clj-async-profiler.

[whatacold]

I found out from a flamegraph that this slowness is due to walking through the whole directory. I'm not sure if this is a problem, or it's just necessary to do that to watch a dir.