Change to bzip2?

Steve G linux_4ever at yahoo.com
Wed Feb 2 20:39:19 UTC 2005


>Of course, when you're talking about man and info pages, what
>are the chances that you actually save significant space when
>you take the filesystem block size into account?

To me, its not just about diskspace. Its also about bandwidth. I don't know about
how block size affects the following data, but here it is:

Uncompressed man page:
du -sh /usr/share/man/man?
26M     /usr/share/man/man1
2.9M    /usr/share/man/man2
52M     /usr/share/man/man3
2.5M    /usr/share/man/man4
3.7M    /usr/share/man/man5
16K     /usr/share/man/man6
1.7M    /usr/share/man/man7
5.7M    /usr/share/man/man8
8.0K    /usr/share/man/man9
1.3M    /usr/share/man/mann

Using gzip:
du -sh /usr/share/man/man?
17M     /usr/share/man/man1
2.5M    /usr/share/man/man2
40M     /usr/share/man/man3
640K    /usr/share/man/man4
2.2M    /usr/share/man/man5
16K     /usr/share/man/man6
1016K   /usr/share/man/man7
4.2M    /usr/share/man/man8
8.0K    /usr/share/man/man9
684K    /usr/share/man/mann
Total 82M

Using bzip2:
du -sh /usr/share/man/man? 
16M     /usr/share/man/man1
2.5M    /usr/share/man/man2
40M     /usr/share/man/man3
588K    /usr/share/man/man4
2.1M    /usr/share/man/man5
16K     /usr/share/man/man6
976K    /usr/share/man/man7
4.2M    /usr/share/man/man8
8.0K    /usr/share/man/man9
680K    /usr/share/man/mann
Total 81M

One thing that skews the results is that some files were not compressed with
bzip2 because they were symlinked.

-Steve Grubb


		
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