Re: [MirageOS-devel] mirage os on cubietruck nand detection

[Thomas Leonard <talex5@xxxxxxxxx>]

On 3 August 2014 17:24, Thomas Leonard <talex5@xxxxxxxxx> wrote:
> On 3 August 2014 17:20, Anil Madhavapeddy <anil@xxxxxxxxxx> wrote:
>> On 3 Aug 2014, at 16:34, Gilles DALMAS <gdalmas@xxxxxxxxxx> wrote:
>>
>> hi,
>>
>> I recently compiled mirage for cubietruck.
>>
>> Everything works fine, but the system is extremely slow.
>>
>> Hi Gilles,
>>
>> Glad to hear you've got it up and running. Could you shed some light about
>> the nature of the application that is slow?
>>
>> If it's networking, there's a known bug at the moment [1] due to a
>> limitation on Xen 4.4/ARM that prevents multiple mapping of pages.   Thomas
>> Leonard has just applied a backport to the SDCard image builder [2] that
>> fixes this issue in Xen itself, so we could remove the workaround now and
>> hopefully get back to decent networking performance (is this correct,
>> Thomas?  I haven't had a chance to rebuild my own Cubie2 yet).
>
> Yes, I'll rebuild the binary images at some point but for now you can
> build from Git. With that, you can revert back to the older
> mirage-net-xen v1.1.1 to avoid the wait after sending each packet.

Here are the new images:

  http://blobs.openmirage.org/cubieboard2-xen-iso.tar.bz2
  http://blobs.openmirage.org/cubietruck-xen-iso.tar.bz2

Installation instructions are here:

  https://github.com/mirage/xen-arm-builder

Remember to use mirage-net-xen v1.1.1 as well, or it will still be slow:

  opam pin mirage-net-xen https://github.com/mirage/mirage-net-xen.git#v1.1.1


-- 
Dr Thomas Leonard        http://0install.net/
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