[igorhvr]

By resources I meant wall-time, mostly - what I am optimizing for (I move >200GB zfs snapshots around a lot..). I did not pay attention to memory, specifically - in that light I updated the side note.

What else did you find odd/wrong?

[alecco]

You don't mention ratios. Better compression becomes asymptotically/exponentially harder when it gets close to the optimal code size.

Thanks for the shout out. BTW Matt's benchmarks are for all major compression engines, not only bzip2.