Binary serialization format of Silk

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Please describe a summary of the new feature (in a paragraph):

Silk is useful for object serialization, however, when the text processing 
performance and the size of 
data to be transferred are matter, we should use some binary format of Silk 
data. 

GZipping a silk data would be a quick solution, however, it still needs the 
same parsing cost with 
the text-based Silk after unzipping the data, and text parsing cost (including 
readline()) is known to 
be a major performance bottleneck for manipulating Silk data. 

Please provide any additional information below:

Original issue reported on code.google.com by taroleo on 27 May 2010 at 3:25