Re: CentOS - PostgreSQL 9.2.13 -> 9.4 - Mailing list pgsql-general

Alvaro Herrera wrote:

> One thing to look at is the rate of WAL generation for a set number of
> transactions.  Maybe the later releases are generating more WAL due to
> multixacts, for instance (prior to 9.3 these weren't wal-logged.)

Also try 9.5alpha2, wherein bug #8470 is fixed, which is a big
performance regression in 9.3 and 9.4.

--
Álvaro Herrera                http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services