potiuk commented on issue #53491:
URL: https://github.com/apache/airflow/issues/53491#issuecomment-3092380152

   > 'l @kyungjunleeme right, i want to get airflow slowness solution in 
airflow 2.10.3
   Now we are planning to implement pgbouner on prod airflow. I am not sure 
pgbouner will help in airflow slowness.
   
   PGBouncer is HIGHLY recommended for Airflow 2 (look at the database 
documentation in Airflow docs for 2.10.3 if you care about performance and have 
high load, I am actually quite surprised you do not have it already, this is 
almost mandatory requirement with high load, because Airflow 2 task instances 
open - each - new connection and Postgress creates a new process for every 
connection, which likely causes it use a LOT of memory and that's the reason 
for slowness (not locking).  We also recommend you have monitoring of your 
database and alerting to be able to diagnose such situations.
   
   In general - there will be no changes nor optimizations any more for Airflow 
2 - just critical bugfixes. So you should also seriously consider migrating to 
Airflow 3 asap. Architecture is changed there and task instance no longer open 
DB connections directly to database. 
   
   Converting to discussion if more discussion needed.


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