“You read the Fastest Flash article so you already know Ext4 can
turbocharge your thumb drive. But you run Linux, so of course want
even more! Is there anything else to do?
“Yup. Use a GPT (GUID Partition Table) rather than the usual MBR
scheme. It will hop up flash performance on almost any filesystem
— not just Ext4.
“Let’s start by reviewing the performance test in the Fast
Filesystem article. Times are seconds it took to write the
uncompressed linux 2.6.34 kernel directory to an SD card, then read
it back (after flushing the caches). Here’s what happens to a
hapless MBR partition table:”