We run Android BSP on MX6Quad SABRE-SDB board.
We noticed that memory reading speed was different between Android4 .4.2 and Android4 .4.3.
eMMC Seq.Read=47.49MB/s, SD Seq Read=22.69MB/s
eMMC Seq.Read=35.38MB/s, SD Seq Read=17.92MB/s
Would you tell me the factor of the difference in this speed?
May I have any advice?