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List: dragonfly-users
Subject: Re: 7-Zip / Bzip2
From: "Ben Cadieux" <ben.cadieux () gmail ! com>
Date: 2008-05-06 18:49:04
Message-ID: 70c3ee930805061146s31d1f229r787b73e3714495f3 () mail ! gmail ! com
[Download RAW message or body]
For everyone concerned with timing, I tested compressing a 4gb image
of a quad boot USB key with a variety of junk on it at compression
level "4".
It still beats bzip2 by 90 mb and was almost 3 minutes quicker:
# time -h bzip2 -k key.img
11m59.71s real 10m39.48s user 5.03s sys
# time -h 7z a -mx=4 key.img.7z key.img
8m39.02s real 7m38.57s user 4.95s sys
# ls -la | grep key
-rw-r----- 1 sol wheel 4102029312 Mar 8 11:27 key.img
-rw------- 1 root wheel 904489376 May 6 11:38 key.img.7z
-rw-r----- 1 sol wheel 997632056 Mar 8 11:27 key.img.bz2
Best Regards,
Ben Cadieux
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