Long delay before file watcher started working on big directory

[garyng]

Expected Behavior

Maybe the file watchers should start working immediately after tilt up? Regardless of how many files the directory has.

Current Behavior

Tilt seems to be taking a long time to setup the file watchers.

Steps to Reproduce

Tiltfile:

local('date >> logs.txt')

Inside a directory with 12392 files, the file watcher works after <1s:

Inside a directory with 183850 files, it took ~30min for the file watcher to start working:

Context

Setup:

• Tilt is running inside a docker container
• All the files in the container are mounted from a Windows host
• Docker socket is forwarded from Docker Desktop for Windows

tilt doctor Output

$ tilt doctor
Tilt: v0.28.1, built 2022-05-01
System: linux-amd64
---
Docker
- Host: unix:///var/run/docker.sock
- Server Version: 20.10.14
- API Version: 1.41
- Builder: 2
- Compose Version: v1.29.2 (build 5becea4c)
---
Kubernetes
- Env: docker-desktop
- Context: docker-desktop
- Cluster Name: docker-desktop
- Namespace: default
- Container Runtime: docker
- Version: v1.22.5
- Cluster Local Registry: none
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[landism]

I've spent a bit of time trying to repro this without much luck. Just to confirm, is this the full content of your Tiltfile?
local('date >> logs.txt')

[garyng]

I've spent a bit of time trying to repro this without much luck. Just to confirm, is this the full content of your Tiltfile? local('date >> logs.txt')

Yup! It's there just for logging, I was able to reproduce this even with an empty Tiltfile.