![]() The sequential results show a huge gap between the SSDs and fast new USB flash drives and the cheaper older-generation flash drives and the microSD card.įrom what I've found, it seems like most USB flash drives perform the same as a microSD card in a USB adapter: So how did all these drives perform? I ran all the tests booting the Pi from the device that was being tested, and I also ran the same benchmarks on my fastest microSD card, a Samsung Evo Plus. I ran benchmarks on every one of these drives, testing their sequential read and write performance with hdparm and dd (to test large file operations), as well as their random 4K read and write performance with iozone (to test more general usage patterns when booting or running apps on a Pi).
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