#!/bin/sh

mount /dev/sda7 /fs

# echo 80000 > /proc/sys/vm/min_free_kbytes

tic=$(date +'%s')

for i in `seq 1000`
do
	truncate -s 1G /fs/sparse-$i
	dd if=/fs/sparse-$i of=/dev/null &>/dev/null &
done

tac=$(date +'%s')
echo start time: $((tac-tic))

wait

tac=$(date +'%s')
echo total time: $((tac-tic))

egrep '(nr_alloc_fail|allocstall)' /proc/vmstat
egrep '(CAL|RES|LOC|TLB)' /proc/interrupts