This means, to be synthetic, that if you test a USB 3.0 stick from a RPI having only USB 2.0 ports will result in speed performances restricted by the slower part (USB 2.0 port).įor this test I’ll use “dd” terminal command. hardware bottelnecks – speed testing can be affected by hardware limits involved in writing.
It is also better testing speed from a very light OS (like Raspberry PI OS Lite) For this reason I suggest to close all running programs before performing test. live OS resources usage – if you test a storage media (micro SD for Raspberry PI) where OS is running, then some write/read running processes can reduce measured speed.But you should consider results from this test indicative (even really near to real speed) because affected from some factors: The best way to test effective write/read speed is writing and reading on it.
