Removing data from SSD takes too long for 4k object

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Hi,

I was using RADOS bench to test on a single node ceph cluster with a dedicated SSD as storage for my OSD.

I created a pool to do the same and filled up my ssd until maximum capacity using RADOS bench with my object size as 4k. On removing the pool, I noticed that it seems to take a really long time for the OSD to delete the pool. In fact it seems to delete at the rate of ~60 GB an hour. On trying this with 4MB objects however, the same process only takes a couple of minutes. Has anyone else observed similar behavior like this and can comment on the same?

Thanks

Sai Srinath Sundar

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