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+--- Forum: Android on Pine A64(+) (https://forum.pine64.org/forumdisplay.php?fid=5)
+--- Thread: Anyone seeing occasional display stuttering? (/showthread.php?tid=844)
Anyone seeing occasional display stuttering? - rakib-hasan - 04-29-2016
I am seeing the display to stutter occasionally on my Pine64 2GB. Anyone else seeing this?
The issue doesn't seem to be any app specific. It happened to me while I was using ES Explorer, Google Play Store or even when I was on the home screen without any app running in the background.
I installed Android-03032016 and Remix-04152016 on two different SD cards. Ran into the same issue with both OSes. Tried two different HDMI cables, still same.
Can anyone suggest what might be wrong? Is this a driver issue?
If others are seeing this issue, we can report a bug.
RE: Anyone seeing occasional display stuttering? - hyperlogos - 04-29-2016
Actually I am seeing the whole OS stutter. Everything chokes periodically. The install, the graphics, everything. A new build is supposed to drop soon, I would just wait
RE: Anyone seeing occasional display stuttering? - tkaiser - 04-29-2016
(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/954-sd-card-performance/
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)