01-14-2020, 11:19 PM
If you really want to know how fast a uSD (or any storage) is
iozone -e -I -a -s 100M -r 4k -r 16k -r 512k -r 1024k -r 16384k -i 0 -i 1 -i 2
Pay attention to the 4K and 16K speeds, esp random writes
You will be SHOCKED until you have done a few
It's hard to beat samsung evo (any version), don't get 16GB, they are slower
They are NOT marked A1 or A2
The high speeds shown are probably bogus, cached (too high to be believable)
But I suspect the PBP uSD slot is 50 mHz so top speed is limited to ~23MB/s
(for test, in a usb3 dongle, in usb3 slot, I think most usb3 dongles do uhs104)
iozone -e -I -a -s 100M -r 4k -r 16k -r 512k -r 1024k -r 16384k -i 0 -i 1 -i 2
Pay attention to the 4K and 16K speeds, esp random writes
You will be SHOCKED until you have done a few
It's hard to beat samsung evo (any version), don't get 16GB, they are slower
They are NOT marked A1 or A2
The high speeds shown are probably bogus, cached (too high to be believable)
But I suspect the PBP uSD slot is 50 mHz so top speed is limited to ~23MB/s
(for test, in a usb3 dongle, in usb3 slot, I think most usb3 dongles do uhs104)