Il 04/04/2016 15:33, Pavel Stehule ha scritto:
PostgreSQL doesn't contain integrated pooler - so any connection to
Postgres enforces one PostgreSQL proces. A performance benchmarks is
showing maximum performance about 10x cores. With high number of
connections you have to use low size of work_mem, what enforces can
have negative impact on performance too. Too high number of active
PostgreSQL processes increase a risk of performance problems with spin
locks, etc.
:-O
I wasn't absolutely aware of this thing... is there a way to monitor
active connections, or at least to report when they grow too much?
(say, I have an 8-core system and want to track down if, and when,
active connections grow over 80)
Thanks
Moreno.-
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