Slow zfs destroy

[Steven Hartland]

It may well depend on the extent of the deletes occurring.

Have you tried disabling TRIM to see if it eliminates the delay?

     Regards
     Steve

On 28/11/2019 09:59, Eugene Grosbein wrote:
> 28.11.2019 14:26, Steven Hartland wrote:
>
>> As you mentioned it’s on SSD you could be suffering from poor TRIM performance from your devices
>> if you run gstat -pd you’ll be able to get an indication if this is the case.
> Yes, this box does have problems with poor TRIM performance.
> But isn't "zfs destroy" supposed to perform actual removal in background?
> "feature at async_destroy" is "enabled" for this pool.