madler/pigz — pull request #16 by dirtyharrycallahan (2014-08-15 11:21:04+00:00)
Title: Increase maximum allowed blocksize.

Earlier versions of pigz did not limit the blocksize
to 4MiB. I have found that when compressing large files
on fast storage there is a substantial speed-up when
using blocksizes > 4 MiB.