An Unencrypted Look at FileVault
Subject:   Terrible disk performance with FileVault
Date:   2004-03-24 17:57:48
From:   kylebarrow

Some actual before and after benchmark numbers (Xbench) for a typical FileVault candidate:

12 inch PowerBook G4 benchmarks before and after FileVault

Not much change in CPU overhead but disk performance is truly nasty. Apple really needs to offer selective encryption of home contents in future versions of FileVault.