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What's the speed difference between using 'File copy (Finder-readable)' and 'Restorable (pax-based)'?

Here is a snapshot of some numbers based on a 650MB CD backup of a Flash MX installation, running under 10.3.8 and demonstrating both 'file copy' and 'restorable' mode backup sessions for comparison:

Backup target size: 78.2MB reported by Finder, 2073 files
Test system: PowerBook G4 1.5GHz, 1GB RAM, Impression 2.7
80GB Journaled HFS+ 5400RPM 2.5" drive, 50% full

OS version

method

time to finish

performance

relative performance

10.3.8

restorable

1m 59s

39.43MB/min

100

10.3.8

file copy

1m 45s

44.69MB/min

113

10.3.8

file copy (cataloging off)

1m 40s

46.92MB/min

119

ImpsAnswer 111, last modified: 2006.02.06


© Copyright 1998-2006 Stephen W. Elliott, All rights reserved.