$ git clone https://github.com/jad21/pg_oltp_bench.git
$ cd pg_oltp_bench
$ apt install postgresql-server-dev-9.5
$ make USE_PGXS=1
$ sudo make USE_PGXS=1 install
$ psql -c 'create database pgtest;'
$ psql pgtest -c "CREATE EXTENSION pg_oltp_bench;"
$ psql pgtest -f oltp_init.sql
$ pgbench -i pgtest
$ time pgbench -t 1000000 -f only_read.sql
$ time pgbench -t 1000000 -f write_read.sql