Hello, Tom

I see your point, but I would like to clarify a few things.

1. Do we consider described measurement method good enough to conclude
that sometimes PostgreSQL really spends 3 ms in a spinlock (like a RTT
between two Internet hosts in the same city)? If not, what method
should be used to approve or disapprove this?

2. If we agree that PostgreSQL does sometimes spend 3 ms in a spinlock
do we consider this a problem?

3. If we consider this a problem, what method is considered appropriate
to find a real reason of such behaviour so we could fix it?

Best regards,

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