Hi Maciek,
 
> Hello Terry,
> I pushed patch (already merged on master) that changes the default behavior of lvol store creation. Currently we write zeros on metadata space and unmap data clusters. Please check > if this works well in your environment.
> Here is the patch:
> https://review.gerrithub.io/#/c/387152/
 
I did the same testing in my environment.
Yes, it works. Speed updates to 2m as below:
 
# time ./scripts/rpc.py construct_lvol_store Nvme0n1 lvs_1 -c 65536
c7f2a420-186f-11e8-9e50-00e04c6805c8
 
real    2m12.727s
user    0m0.073s
sys     0m0.016s

 

 

 

Regards,,

Terry

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