(04-29-2016, 05:34 AM)hyperlogos Wrote: Actually I am seeing the whole OS stutter. Everything chokes periodically.
Do you know why every Android device out there uses eMMC? Since eMMC shows pretty decent random I/O performance.
Do you know what happens if you use an average SD card with Android? The symptoms you describe above.
Random I/O is the key and SD cards of the same 'speed class' differ here by factor 20 or even more: http://forum.armbian.com/index.php/topic...rformance/
Unfortunately the 'speed class' ratings used for SD cards don't tell anything about random I/O and it's also not that easy to measure this in Android/RemixOS (with Linux you would use iozone for example -- see the aforementioned link)