8c9dd69fc2
The reported latency values now include the "schedule lag" time, that is, the time between the transaction's scheduled start time and the time it actually started. This relates better to a model where requests arrive at a certain rate, and we are interested in the response time to the end user or application, rather than the response time of the database itself. Also, when --rate is used, include the schedule lag time in the log output. The --rate option is new in 9.4, so backpatch to 9.4. It seems better to make this change in 9.4, while we're still in the beta period, than ship a 9.4 version that calculates the values differently than 9.5.
PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: http://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at http://www.postgresql.org/download/. For more information look at our web site located at http://www.postgresql.org/.