More relevant would be a comparison with gzip -1, lzop, snappy and rolz.
Also the test data is mixed. It is not very helpful to see where this algorithm shines.
Also note the memory usage shots up from 5m/2m for info-zip -1 to 46m/42m for the specific case of lz4 you picked.
EDIT: also bzip2 seems to be paticularly bad for this specific dataset, other algorithms in that category get better compression ratios. Added pigz to the comparison (info-zip with pthreads).
Also the test data is mixed. It is not very helpful to see where this algorithm shines.
Also note the memory usage shots up from 5m/2m for info-zip -1 to 46m/42m for the specific case of lz4 you picked.
EDIT: also bzip2 seems to be paticularly bad for this specific dataset, other algorithms in that category get better compression ratios. Added pigz to the comparison (info-zip with pthreads).