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#!/usr/bin/env bash
set -e
print_usage() {
cat >&2 <<EOF
Usage: $0 FILE
This script runs performance tests on some scenarios using the fio tool.
* If the file provided does not exist, fio will create a 16GB file in its place.
* If the file provided does not reach the 16GB in size, fio will fill until the file reaches 16GB.
Example:
$0 /mnt/saunafs/big_file
$0 big_file
EOF
exit 1
}
ensure_fio_installed() {
if ! which fio >/dev/null; then
echo "fio not installed"
sudo apt -y install fio || exit 1
fi
}
get_value_from_arg () {
local key="$1"
echo "${args}" | grep -oP '(?<=-'"${key}"'=)[^ ]+' | head -1
}
generate_description() {
local args="$@"
local descriptions=()
while [[ "${args}" =~ "-rw=" ]]; do
local rw_type=$(get_value_from_arg rw)
args=${args#*-rw=}
local num_jobs=$(get_value_from_arg numjobs)
args=${args#*-numjobs=}
local delay=$(get_value_from_arg thinktime)
args=${args#*-thinktime=}
case "${rw_type}" in
read) rw_desc="Sequential Read" ;;
randread) rw_desc="Random Read" ;;
*) rw_desc="${rw_type}" ;;
esac
case "${delay}" in
0ms) delay_desc="FAST" ;;
*) delay_desc="with ${delay} delay" ;;
esac
[[ "${num_jobs}" == "1" ]] && echo "Single ${rw_desc} ${delay_desc}"
[[ "${num_jobs}" > "1" ]] && echo "${num_jobs} ${rw_desc} ${delay_desc}"
done
}
run_fio_test() {
echo 3 > /proc/sys/vm/drop_caches
local thinktime=$(echo "$@" | grep -oP '(?<=-thinktime=)[^ ]+')
[[ -z "${thinktime}" ]] && set -- "$@" "-thinktime=0ms"
local description=$(generate_description "$@")
echo ""
sed 's/./-/g' <<< ${description} | sort -r | head -1
echo "${description}"
sed 's/./-/g' <<< ${description} | sort -r | head -1
fio -filename="${file}" "$@" |& tee -a "${log_file}" | grep --color -E 'READ'
}
file="$1"
log_file="/tmp/$(basename ""$0"")_$(date '+%F_%H%M%S').log"
if [[ -z "${file}" ]]; then
print_usage
fi
ensure_fio_installed
# Test invocations
run_fio_test -direct=1 -rw=read -numjobs=1 -bs=1MB -size=16GB -runtime=300 -thinktime=0ms -name=seqread
run_fio_test -direct=1 -rw=randread -numjobs=1 -bs=1MB -size=16GB -runtime=300 -thinktime=0ms -name=randread
run_fio_test -direct=1 -rw=read -numjobs=5 -bs=1MB -size=16GB -runtime=300 -thinktime=0ms -name=seqreads_5
run_fio_test -direct=1 -rw=randread -numjobs=5 -bs=1MB -size=16GB -runtime=300 -thinktime=0ms -name=randreads_5
run_fio_test -direct=1 -rw=read -numjobs=128 -bs=256KB -size=32MB -runtime=500 -thinktime=125ms -name=slowseqreads_128 \
-rw=read -numjobs=1 -bs=1MB -size=16GB -runtime=300 -thinktime=0ms -name=fastseqread
run_fio_test -direct=1 -rw=randread -numjobs=128 -bs=256KB -size=32MB -runtime=500 -thinktime=125ms -name=slowrandreads_128 \
-rw=read -numjobs=1 -bs=1MB -size=16GB -runtime=300 -thinktime=0ms -name=fastseqread
echo
echo Full log is available here:
echo " cat ${log_file}"
|
