BCM

BCM is a relatively new file compression program by Ilia Muraviev. It is important to note that the 64-bit version of BCM is not simply a different compilation of the 32-bit code; rather they are two programs with different code, and Ilia has given the 64-bit version the majority of his development attention.

BCM v0.10 by Ilia Muraviev
Usage: BCM [options] input [output]
Options:
  -b# Set block size to # MB (default is 64)
  -d  Decompress
  -f  Force overwrite
BCM
Command 32-bit 64-bit Difference
Average -4.525%
bcm -b64 479.609 445.523 -7.107%
bcm -b128 482.308 464.570 -3.678%
bcm -b256 504.725 490.638 -2.791%
bcm -b384 528.030 513.009 -2.845%

BCM saw marginal improvements in the 64-bit version. -b384 was the highest setting I could test, because the 32-bit version was unable to use a blocksize of 512MB

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§4991 · March 6, 2010 · Tags: , , ·

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