ZFS ZFS space reclamation

"The operation is nearly instantaneous, but it may take several minutes for the free space to be reclaimed in the background."
ZFS Administration

Is there any way to check on these background processes like the progress of dataset deletion? Even if it's not a percentage, just to know that something like that is occuring.
 
"The operation is nearly instantaneous, but it may take several minutes for the free space to be reclaimed in the background."
ZFS Administration

Is there any way to check on these background processes like the progress of dataset deletion? Even if it's not a percentage, just to know that something like that is occuring.

Three ways to see that something is happening:
  1. top -S
  2. ps auxHwww | egrep zfskern
  3. procstat -kka |egrep 'zfs|zio|vdev|zil'
 
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