borg compresses 2.3x faster than casync (and other benchmarks) #268
Description
borgbackup 2 compresses VM images 2.3x faster than casync on exactly same settings. I. e. same chunker params, same compression, etc. See details (and more benchmarks) here: borgbackup/borg#7674 . I did big comparison of speed of dedupper solutions.
Also, my tests (see above) show that fixed-size chunking is faster for storing sequential snapshots of single VMs without losing in compression ratio. (Because data usually stays in same place inside VM image.) So it would be great to support fixed size chunking in addition to buzhash in casync