Re: Built-in connection pooling

> config/pgjsonb-local.dat

Do you use standard "workload" configuration values?
(e.g. recordcount=1000, maxscanlength=100)

Could you share ycsb output (e.g. for workload a)?
I mean lines like
[TOTAL_GC_TIME], Time(ms), xxx
[TOTAL_GC_TIME_%], Time(%), xxx

>postgresql-9.4.1212.jar

Ok, you have relevant performance fixes then.

Konstantin>Just simple example: consider that you have something like
AppStore and there is some popular application which is bought by a lot of
users.
Konstantin>From DBMS point of view a lot of clients perform concurrent
update of the same record.

I thought YCSB updated *multiple rows* per transaction. It turns out all
the default YCSB workloads update just one row per transaction. There is no
batching, etc. Batch-related parameters are used at "DB initial load" time
only.

Konstantin>Postgres locks tuples in very inefficient way in case of high
contention

Thank you for the explanation.

Vladimir