Thread: 32GB micro secure digital (microSD) memory card on the way
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shadowjk is offline shadowjk
2010-03-23 , 07:51
Posts: 1,258 | Thanked: 672 times | Joined on Mar 2009
#29
Originally Posted by Konceptz View Post
As far as I've learned, fragmentation should have no real bearing on speed of flash memory.

Wear should only matter if the memory is at the end of it's read/write lifespan.
It doesn't have much impact on read-speeds.

On write speeds it's worse than harddrives. If you write 4k to sd card, the sd card must internally read 256, change 4k of it, and write it back. Take 256/4 and you get the slowdown factor. Obviously, writing 256k for a 4k request means the flash is taking much more wear.