Dear all,
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.
<Measurement result>
* Android4.4.2
eMMC Seq.Read=47.49MB/s, SD Seq Read=22.69MB/s
* Android4.4.3
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?
Best Regards,
Yuuki Murasato
Are you using the same way to measure the speed?
Please make sure that the board is running with the same clocks.
Have a great day,
Victor
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Dear Victor-san,
I am sorry to delay.
Thank you for your support.
We measured by the same method.
The clock setting for eMMC/SD is the same, too.
The write speed is almost similar.
However, we seem that a performance of the reading speed may be inferior in Android4.4.3.
Are there any patches for eMMC/SD I/F in Android4.4.3?
Best Regards,
Yuuki