09-04-2016, 11:47 PM
(This post was last modified: 09-04-2016, 11:54 PM by pfeerick.
Edit Reason: edit: Android note
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(09-04-2016, 11:47 AM)moondark Wrote:(09-02-2016, 01:52 PM)kermitas Wrote: Does anybody have any news about real enabling/use Pine in gigabit speed?
It seems that all winner won! No new android images, no updates for drivers, no promised 3D HW support on linux, android for pine is abandoned. Now everything is in the hands of the community.
One think to keep in mind that the microSD bandwidth is limited to around 22-23MB/s at best, and the USB 2 ports are limited to 35MB/s. So unless you are transferring from a RAM memory drive or file buffers, there is absolutely no chance of getting anything near to the 125MB/s of GbE... The best results I have seen from my setup are 29-30MB/s upload to the pine64, and 22-25MB/sec download from the pine64, using the Armbian legacy distro with no customisation. This is even in a more 'worst case' scenario when running it with no lithium battery connected (so no battery to smooth any power ripples/fluctuations), an approximately 5 meter Cat5 cable of questionable quality (ripped out of an office somewhere) with self-crimped connectors, and powered via the MicroUSB using a USB powerbank, and no active cooling (no fan, just the heatsinks I put on when I first got it).
It doesn't have the SATA interface or USB3 interfaces that would make the most use of the GbE connection. Having said that, it is certainly capable of double the speeds of a standard 100Mbit link, so that is still nice.
Unfortunately, this doesn't help you guys, as Armbian isn't Android!
However, there is no reason to believe that this can't be fixed, as the baring the usual suspects of hardware conflicts (ie auto-negotiation), dodgy power(microUSB/voltage sag) and faulty boards... this is solely a configuration issue, and that is fixable given time for the issue to be reproduced by a developer who can then work on the fix. My experiences with low speed (100Mbit-speeds) on the stock Pine64 Debian build, which can be speed up with some simple settings tweaks, make me believe in most cases this is mainly a software issue.