Native OS watch vs polling for WebStorm File Watcher in large projects
0 reputation · 21 Apr 2023, 01:26 UTC
Configuring File Watcher for a large project requires balancing responsiveness against CPU load. The goal is timely UI feedback without sustained high CPU usage when monitoring extensive directory trees.
Native OS file watching provides near-real-time updates but may be unreliable on network mounts or symlinked paths, and can be costly on macOS/Linux with large trees where inotify events are missed. Polling offers more stable behavior across diverse project structures, with latency tied to the configured interval and reduced CPU pressure at the cost of delayed feedback and potential missed rapid changes.
Behavior varies with OS and project size and may differ between WebStorm 2023.3 and 2024.x releases. The unresolved decision is how to prioritize speed versus stability when project structure includes symlinks or network paths.
Under what conditions does WebStorm prefer native watch over polling for File Watcher? How is fallback to polling determined for symlinked or network-mounted paths? What criteria should govern the choice between responsiveness and CPU load for File Watcher in large projects?
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