Memory Card performance, and file-sytem
I have a 512 meg SD MMC (secure digital Multi media Card)
which i use with USB2 internal card readers.
Why is it, that when formated as VFAT, the card has a read/write speed of 600kbps.
But whn formatted with any other file system (ext2 or excrypted device map)
it only manages 60 kbps.
The card works 10 times faster when formated as VFAT.
Any idea's why ?
The file-system is implemented at the kernel level. this is confusing.
The memory card is accessed by the usual scsi emulation over USB2.