High memory usage with a large number of files

[Wenzel]

Description

Cozy-desktop is using too much memory at initialization, and afterwards to watch the modifications on Linux if there are a lot of files in the tree

Steps to Reproduce

1. set up a folder to watch with a large number of files

$ find Cozy  | wc -l
34663

2. run cozy-desktop
3. observe high memory usage at initialization

Expected behavior

I expected a small footprint

Actual behavior

the memory footprint is quite high:

(20% here on 7,5G, above Firefox)

Informations

• reproductible: always
• OS: fedora 29
• version: 3.10.3

[sebn]

Hello @Wenzel, sorry for the late answer.

We're aware of the various resource usage issues.
We're currently working on a new local watcher implementation primarily targeted to Windows, but we should be able to use it on GNU/Linux soon after that.
The main purpose is to make the watcher more reliable on Windows, but it should eventually make resource usage lower too.
If the issue persist when the new watcher starts being used in stable releases, we'll definitely address it.