The following bug has been logged online: Bug reference: 6311 Logged by: Roye Cohen Email address: roye.co...@sap.com PostgreSQL version: 9.1.1 Operating system: Linux Redhat Description: Performance degradation after upgrade Details:
Hi, I am a performance engineer. I was conducting a comparison from postgres 9.0 to 9.1.1 in order to upgrade to the newest version. I found a degradation in physical memory used on DB server (~200% degradation) and a small degradation in response times on every transaction monitored in comparison to 9.0. The test was done on HP LoadRunner with 300 concurrent users executing a flow of events. •The exact sequence of steps is hard to describe but it is important to state that the executions were exactly the same. Default postgres settings were used (settings were not changed after installing postgres). OS Version: Linux 2.6.18-164.el5 x86_64 I am at your service if you have any further inqueries. Best regards, Roye -- Sent via pgsql-bugs mailing list (pgsql-bugs@postgresql.org) To make changes to your subscription: http://www.postgresql.org/mailpref/pgsql-bugs
