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pgbench can skip some transactions when both -R and -L options are used. Previously, this resulted in slightly silly statistics both in progress reports and final output, because the skipped transactions were counted as executed for TPS and related stats. Discount skipped xacts in TPS numbers, and also when figuring the percentage of xacts exceeding the latency limit. Also, don't print per-script skipped-transaction counts when there is only one script. That's redundant with the overall count, and it's inconsistent with the fact that we don't print other per-script stats when there's only one script. Clean up some unnecessary interactions between what should be independent options that were due to that decision. While at it, avoid division-by-zero in cases where no transactions were executed. While on modern platforms this would generally result in printing "NaN" rather than a crash, that isn't spelled consistently across platforms and it would confuse many people. Skip the relevant output entirely when practical, else print zeroes. Fabien Coelho, reviewed by Steve Singer, additional hacking by me Discussion: https://postgr.es/m/26654.1505232433@sss.pgh.pa.us |
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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: https://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 https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.