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Benchmark

[disk io]
creates 1gb test file
# dd of=/target/test.out if=/dev/zero bs=1024 count=1M
read performace
# hdparm -t /dev/sda

[network]
tcp/udp speed test
server# iperf -s -p 9000 | iperf -s -u -p 9000
client# iperf -c <server> -p 9000 -t 60 -r | iperf -c <server> -u -p 9000 -t 60 -r

test network speed without wasting disk space
$ dd if=/dev/zero bs=4096 count=1048576 | ssh user@host.tld 'cat > /dev/null'
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