for c in 8  16 32 64 128 256 512; do

	for r in `seq 1 10`; do

		psql test -c 'vacuum full' > /dev/null 2>&1
		psql test -c 'analyze' > /dev/null 2>&1
		psql test -c 'checkpoint' > /dev/null 2>&1

		pgbench -n -f xid-update.sql -c $c -j $c -M prepared -T 70 test > /dev/null 2>&1 &

		tps=`pgbench -n -c 8 -j 8 -f xid-select.sql -M prepared -T 180 test | grep excluding | awk '{print $3}'`

		wait

		echo $c $r $tps

	done

done