#!/usr/bin/env bash

PATH_OLD=$PATH

set -e

for checksums in on off; do

	for device in raid-nvme raid-sata data; do

		DATADIR=/mnt/$device/data-distance

		export PATH=/home/tomas/builds/master/bin:$PATH_OLD

		rm -Rf $DATADIR

		# init the table
		pg_ctl -D $DATADIR init
		pg_ctl -D $DATADIR -l pg.log start

		createdb test
		psql test < init.sql

		pg_ctl -D $DATADIR stop

		if [ "$checksums" == "off" ]; then
			pg_checksums --disable $DATADIR
		fi

		for build in master patched patched-vondra patched-munro patched-no-explain patched-vondra-no-explain patched-munro-no-explain; do

			export PATH=/home/tomas/builds/$build/bin:$PATH_OLD

			for buffers in 512MB 16GB; do

				for eic in 16 100; do

					for iomethod in worker io_uring; do

						for ioworkers in 3 12; do

							if [ "$ioworkers" == "12" ] && [ "$iomethod" == "io_uring" ]; then
								continue
							fi

							echo "shared_buffers = $buffers" >> $DATADIR/postgresql.conf
							echo "io_method = $iomethod" >> $DATADIR/postgresql.conf
							echo "io_workers = $ioworkers" >> $DATADIR/postgresql.conf
							echo "effective_io_concurrency = $eic" >> $DATADIR/postgresql.conf

							for r in $(seq 1 5); do

								sudo ./drop-caches.sh

								pg_ctl -D $DATADIR -l pg.log start

								numactl --physcpubind=1 psql test < query2.sql > query.log 2>&1

								cold=$(grep 'Time' query.log | awk '{print $2}' | head -n 1)
								warm=$(grep 'Time' query.log | awk '{print $2}' | tail -n 1)

								echo $device $checksums $build $buffers $eic $iomethod $ioworkers $r $cold $warm >> results.csv

								echo "========== $device $checksums $build $buffers $eic $iomethod $ioworkers $r $cold $warm ==========" >> explain.log
								cat query.log >> explain.log

								pg_ctl -D $DATADIR -l pg.log stop

							done

						done

					done

				done

			done

		done

	done

done