Is your feature request related to a problem? Please describe.
Some configurations may result in very low slice appending speed, e.g., due to
heavy rechunking involved, or
slow remote slice or target filesystems.
Describe the solution you'd like
Emit a log message, warning level, if zappending will presumably be slow.
Likely this can be determined after the first slice dataset has been seen.
If possible, include hint to mitigate, or refer to user guide.
Therefore, mention common situations in the new performance guide, see #66.
Is your feature request related to a problem? Please describe.
Some configurations may result in very low slice appending speed, e.g., due to
Describe the solution you'd like
Emit a log message, warning level, if zappending will presumably be slow. Likely this can be determined after the first slice dataset has been seen. If possible, include hint to mitigate, or refer to user guide. Therefore, mention common situations in the new performance guide, see #66.