<mohammadrony>

Input Output

Disk IO

IO speed without disk write

time dd if=/dev/zero of=/dev/null count=1000000

Disk write IO speed in /

sudo su

touch /testfile
time dd if=/dev/zero of=/testfile bs=1M count=1024 oflag=direct

Disk read IO speed in /

time dd if=/testfile of=/dev/null bs=1M count=1024 iflag=direct