README.md

TPC-H Greenplum benchmark

This repository contains a simple implementation that runs a TPC-H-like benchmark with a PostgreSQL database. It builds on the official TPC-H benchmark available at http://tpc.org/tpch/default.asp (uses just the dbgen a qgen parts).

Preparing dbgen and qgen

cd tpch/dbgen
make

Now you should have dbgen and qgen tools that generate data and queries.

preparing data and queries

Generate 10G test data

$ ./benchmark_prepare -d 10

Generate queries

$ ./benchmark_prepare -q

Importing data and Running the benchmark

$ ./benchmark_test.sh results host dbname user_name password

Running the benchmark only

$ ./tpch_test_only.sh results host dbname user_name password

and wait until the benchmark.

Processing the results

All the results are written into the output directory (first parameter). To get useful results (timing of each query, various statistics), you can use script process.php. It expects two parameters - input dir (with data collected by the tpch.sh script) and output file (in CSV format). For example like this:

$ php process.php ./results output.csv

This should give you nicely formatted CSV file.