storage-speed-test/README.md

Mac - Disk IO speed test

Bash script for Mac OS X test SSD/HDD/SDHC or network storage's read and write speeds of devices on or connected to your mac.

Usage:

$ bash storage_speedtest.sh /Volumes/Data/

i.e., use: /Volumes/Data and not /dev/disk2

Note: administrator password is necessary for sudo to reset file system cache (using sync & purge command). This is because the Read speed results are incorrect when performed without a cache reset.