Max compression

Francis Gulotta wizard at
Mon Jun 6 17:35:52 CEST 2005

Hash: SHA1

And I'll add that most rsync servers I've used usually keep things set
at 7 for a balance between processor cost and compression rates. If
processor cost is an issue for you, it pays to test a few of the
compression levels out to see what's acceptable.

- -Francis

Atom Smasher wrote:
> On Tue, 24 May 2005, Per Tunedal Casual wrote:
>>what are the maximum values for compression for zip, zlib and bzip2? The 
>>default is 6 for zlib according to the manpage.
>>I would like to set a somewhat higher compression with: --compress-level
> ==============
> the range is 1-9. 1 is the fastest, 9 is the best compression.
> from the gzip man page:
>  	Regulate the speed of compression using the specified digit #,
>  	where -1 or --fast indicates the fastest compression method (less
>  	compression)  and -9 or --best indicates the slowest compression
>  	method (best compression).  The default compression level is -6
>  	(that is, biased towards high compression at expense of speed)
> and bzip2:
>  	Set the block size to 100 k, 200 k ..  900 k when compressing.
>  	Has no effect when decompressing.  See MEMORY MANAGEMENT below.
>  	The --fast and --best aliases are primarily for GNU gzip
>  	compatibility.  In particular, --fast doesn't make things
>  	significantly faster.  And --best merely selects the default
>  	behavior.
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