Ceph 19.2.1 2 OSD(s) experiencing slow operations in BlueStore

I have upgraded too to 19.2.2 before weekend, but no luck:

HEALTH_WARN: 2 OSD(s) experiencing slow operations in BlueStore
osd.9 observed slow operation indications in BlueStore
osd.15 observed slow operation indications in BlueStore
 
I experience all of the mentioned BlueStore warnings... Additionally taking snapshots is taking forever now.
This used to be a matter of seconds, now it takes minutes + the snaptrim process loads the cpu for a very long time.

I feel, this is introduced in ceph 19.2.2. I will try and have proper data for this. Just sharing for now, maybe others experience this also.
 
After data recovery, and upgrading to 19.2.2, I am now getting this one of my pure SSD class pools (no wall or db, basic replication only):


Code:
[WRN] BLUESTORE_SLOW_OP_ALERT: 1 OSD(s) experiencing slow operations in BlueStore
     osd.9 observed slow operation indications in BlueStore
[WRN] DB_DEVICE_STALLED_READ_ALERT: 1 OSD(s) experiencing stalled read in db device of BlueFS
     osd.9 observed stalled read indications in DB device

As best as I can tell, this disk is perfectly healthy. :/
what is your ssd model ?
 
The problem still exists, and it is not solved. I can only look at the error message and pray that it will not crash. Haha.