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#!/bin/sh
for i in {0..4}; do
echo "WRITE SPEED"
dd if=/dev/zero of=tempfile bs=1M count=1024 conv=fdatasync,notrunc
echo
echo "READ SPEED"
echo 3 > /proc/sys/vm/drop_caches
dd if=tempfile of=/dev/null bs=1M count=1024
echo
echo "BUFFERED READ SPEED"
dd if=tempfile of=/dev/null bs=1M count=1024
rm tempfile
done
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