08/06/30 15:20:23 Pt7FfeQa
-9使うだろ常考
$ time gzip -9 emacs-21.4a.tar
real 0m23.369s
user 0m18.659s
sys 0m2.363s
$ time bzip2 -9 emacs-21.4a.tar
real 1m9.675s
user 1m3.954s
sys 0m1.605s
$ time lzma -9 emacs-21.4a.tar
real 7m20.250s
user 6m41.498s
sys 0m3.793s
$ ls -lSr emacs-21.4a.tar*
-rw-rw-r-- 1 xxxx xxxx 12644142 Jun 30 15:00 emacs-21.4a.tar.lzma
-rw-rw-r-- 1 xxxx xxxx 16031034 Jun 30 14:59 emacs-21.4a.tar.bz2
-rw-rw-r-- 1 xxxx xxxx 20403499 Jun 30 14:58 emacs-21.4a.tar.gz
$
lzma -9の方が小さいよ。
死ぬほど遅いけど。