Re: Performance of armhf boards
On Wed, Apr 20, 2016 at 05:17:02PM -0700, Rick Thomas wrote:
> One personal experience that may be relevant:
>
> I ordered a Cubox-i4x4 from NewEgg a few months ago. When it arrived it
> was clearly marked as a 4x4, and in the original shrink-wrap, But it
> only had 2GB of RAM. I notified NewEgg and they tested one of the other
> one's of that batch they had in stock. Surprise! It also had only 2GB
> RAM... They gave me a rebate of the difference in price between the
> i4-Pro and the 4x4 and we considered the matter closed.
>
> But it might be worth checking, anyway.
>
> Also, as for the (lack of) difference between USB2 and USB3 disks, the
> Cubox boards all have Gbit Ethernet ports, but they are limited to
> 480Mbit actual throughput rate. I assume this is because the SoC
> handles everything thru a USB2 driver circuit, though I'm not privy to
> any actual design information. You may be seeing a similar thing here.
Well errata entry ERR004512 of
http://cache.freescale.com/files/32bit/doc/errata/IMX6DQCE.pdf?fpsp=1&WT_TYPE=Errata&WT_VENDOR=FREESCALE&WT_FILE_FORMAT=pdf&WT_ASSET=Documentation
seems to say that's the limit for ethernet throughput on the imx6 and
it isn't going to change. Doesn't say why that is the limit.
--
Len Sorensen
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