Satoshi Nagayasu <sn...@uptime.jp> writes:
> Ok, I guess we have reached the consensus to have
> "some flight-recorder". Right?
I remain unconvinced. I think the argument that this will promote
novice understanding is complete hogwash: making any sense of
lwlock-level stats will require deep PG understanding, not create it.
And despite Jeff's optimistic views upthread, I don't think very many
people have or will acquire such understanding. So I'm really resistant
to accepting even minimal overhead in pursuit of this goal --- and I
do not believe the overhead will be minimal, either.
regards, tom lane
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