Show rate of progress? Slow performance on SMR drives

General Topics
1

Is there any way show a live rate of progress like MB/s? I am looking to compare with rsync. I know performance for with SMR can be utterly slow, but at the moment from napkin math and poor sample size it seem a write ~14 MB/s for kopia from SMR to SMR drive and ~75 MB/s for rsync for video files.

Obviously I don’t expect them to be the same because Kopia does compression, dedup, etc. but at ~14 MB/s for primarly video files, I might have to repurpose the drive that I already have no use for (For this dataset, I only need encryption and ability to handle file renames without considering them as new files–the latter that rsync cannot do but I haven’t an appropriate tool for, maybe btrfs send/receive?).

2

SMR disks are inherently slow, when having to overwrite portions on the disk surface. This is, why these types of disks are only viable as archive disks/cold storage. However, Kopia will need to shuffle data around and re-write blobs, which is likely to cause the bad performance, especially when the SMR drive starts to fill up.

Personally, I always make sure to only use CMR drives…

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