Disk Bench

Designed to run similar tests as Crystal Disk Mark using fio with user friendly output options.

Tests ran:

• Sequential read/write w/ 1MB block size
• Random read/write w/ 512K block size
• Queue depth 32 random read/write 4K blocks size

Install

# system install
$ sudo pip3 install disk-bench

# user install
$ pip3 install --user disk-bench

Usage

$ disk-bench --help

# Default runs fio w/ --loops=3 and --size=1G
$ disk-bench /mnt/disk-to-test/whatever

# Show CSV output (for easy copy/paste into Excel or Google Sheets)
$ disk-bench /mnt/disk-to-test/whatever --style=csv

# Quick
$ disk-bench /mnt/disk-to-test/whatever --seq-size 4G --runtime 1m

Command Details

The fio command we are running is essentially:

fio --directory . --filename=disk~bench.tmp --output-format=json --stonewall --ioengine=libaio --direct=0 --gtod_reduce=1 --name=seqread --bs=1m --rw=read --size=64G --name=seqwrite --bs=1m --rw=write --size=64G --name=randread --bs=512k --rw=randread --size=4G --name=randwrite --bs=512k --rw=randwrite --size=4G --name=4kQD32read --bs=4k --iodepth=32 --rw=randread --size=4G --name=4kQD32write --bs=4k --iodepth=32 --rw=randwrite --size=4G --name=4kQD16 --bs=4k --iodepth=32 --rw=randrw --rwmixread=65 --size=4G