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A possible fix for high Finder CPU usage
Authored by: r0n on Dec 13, '04 11:47:22AM
I´ve had the same CPU eating Finder mystery long time ago.

It turned out, in my case, Calculate all sizes was activated for Finder windows viewed 'as list' (Finder -> View / Show view options) resulting in never ending Finder calculations.

This may be just concerning slower macs like mine (G4/400!), but it´s reproducible: Once I check 'Calculate all sizes', and toggle some window into list view, Finder starts doing the CPU eating thing.

I think calculating folder content has been the #1 performance killer trap back in the days when running System 7.x. However the classic Finder was slowed down just as long as any windows were opened in list view. OS X Finder keeps the CPU busy even when I close all windows and uncheck the 'Calculate all sizes' option again - gotta kill and relaunch the Finder to stop its CPU hunger. Maybe it keeps calculation sizes in advance...


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