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Raspberry Pi Dramble benchmark for ev3dev
# Raspberry Pi microSD card benchmark script.
# A script I use to automate the running and reporting of benchmarks I compile
# for:
# Usage:
# $ wget
# $ sudo bash
# Another good benchmark:
# $ curl | sudo bash
# Author: Jeff Geerling, 2016
printf "\n"
printf "Raspberry Pi Dramble microSD benchmarks\n"
CLOCK="$(grep "actual clock" /sys/kernel/debug/mmc0/ios 2>/dev/null | awk '{printf("%0.3f MHz", $3/1000000)}')"
if [ -n "$CLOCK" ]; then
echo "microSD clock: $CLOCK"
printf "\n"
# Fail if $SUDO_USER is empty.
if [ -z "$SUDO_USER" ]; then
printf "This script must be run with sudo.\n"
exit 1;
# Variables.
USER_HOME_PATH=$(getent passwd $SUDO_USER | cut -d: -f6)
# Install dependencies.
if [ ! `which hdparm` ]; then
printf "Installing deps...\n"
apt-get update
apt-get install -y hdparm iozone3
printf "Install complete!\n\n"
# Run benchmarks.
printf "Running hdparm test...\n"
hdparm -t /dev/mmcblk0
printf "\n"
printf "Running dd test...\n\n"
dd if=/dev/zero of=${USER_HOME_PATH}/test bs=8k count=50k conv=fsync; rm -f ${USER_HOME_PATH}/test
printf "\n"
printf "Running iozone test...\n"
iozone -e -I -a -s 100M -r 4k -i 0 -i 1 -i 2
printf "\n"
printf "microSD card benchmark complete!\n\n"
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