Re: [Algorithms] Comparing apples to apples : compression libraries

[<gd...@er...>]

Hi John, 

Thanks for the very useful work again and a nice time saver. 

>>My experiments with zlib on consoles was very disappointing.
Which console(s)? 

Playstation 3 Edge libraries, available to PS3 licensees, have an SPU 
optimized version for ZLib, that can decompress 40MB/sec using 25% of 1 SPU: 

 From http://forum.beyond3d.com/showpost.php?p=956489&postcount=196 

Thanks,
Erwin 

 


Glen Miner writes: 

> I'm curious what hardware this was tested on. My experiments with zlib on 
> consoles was very disappointing. 
> 
> peace 
> 
> "John W. Ratcliff" <jo...@si...> wrote in message 
> news:004f01c88ed0 
> 
> Testing Compression rate and speed with various compressors.
> ---------------------------------------------------------------
> Compress:CT_CRYPTO  :FROM: 10,436,335 TO:  2,498,433   23%    1,170 MS
> Compress:CT_MINILZO :FROM: 10,436,335 TO:  3,940,072   37%       97 MS
> Compress:CT_ZLIB    :FROM: 10,436,335 TO:  3,299,771   31%      157 MS
> Compress:CT_BZIP    :FROM: 10,436,335 TO:  2,270,695   21%    1,544 MS
> ---------------------------------------------------------------
> Testing Decompression speed with various decompressors.
> ---------------------------------------------------------------
> Decompress:CT_CRYPTO  :FROM:  2,498,433 TO: 10,436,335      258 MS
> Decompress:CT_MINILZO :FROM:  3,940,072 TO: 10,436,335       42 MS
> Decompress:CT_ZLIB    :FROM:  3,299,771 TO: 10,436,335       69 MS
> Decompress:CT_BZIP    :FROM:  2,270,695 TO: 10,436,335      390 MS 
> 
>  
> 
> 
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