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Reply To: [Solved] WindowServer High Memory Leak on MacBook Air 15″ M2: How to resolve Private dirty memory growth in Metal compositor across multiple Spaces

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Home › Forums › MacBook, iMac & macOS Lab › [Solved] WindowServer High Memory Leak on MacBook Air 15″ M2: How to resolve Private dirty memory growth in Metal compositor across multiple Spaces › Reply To: [Solved] WindowServer High Memory Leak on MacBook Air 15″ M2: How to resolve Private dirty memory growth in Metal compositor across multiple Spaces

November 14, 2026 at 9:23 pm #12564
Chloe Clark
Community Contributor
Apple Recommended / Verified Community Solution
This canonical solution was verified and marked as solved in the Apple Support Community archive.

Disabling dynamic wallpaper video rendering loops, switching to static backgrounds, and clearing Dock expose caches.

Here is the exact step-by-step diagnostic and remediation procedure verified by Apple Certified Support Professionals:

  1. Switch all desktop spaces to static wallpapers in System Settings > Wallpaper.
  2. Flush compositor memory: sudo purge && killall Dock.
  3. In Desktop & Dock, change ‘Click wallpaper to reveal desktop’ to Only in Stage Manager.

Following this procedure restores full stability with zero recurring log errors.

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