Re: New Raspberry Pi image

[Stephan <stephanwib%googlemail.com@localhost>]

2013/1/25 Nick Hudson <skrll%netbsd.org@localhost>:
> On 01/25/13 16:59, Stephan wrote:
>>
>> Hi Nick,
>
>
> Hi,
>
>
>> the image from January 10th boots faster and feels more responsive.
>> For example, when I scp a file from localhost to localhost, the
>> throughput is 1.0 - 1.2 MB/s with that image. In contrast, with the
>> image from yesterday throughput is only 750 kb/s.
>
>
> The latest one uses LOCKDEBUG which does slow things down quite a lot.

That makes things clear. As for performance in general, what known
issues are there yet? One thing I know is hard-float, which apparently
requires changes to libc (also to the CPU support in the kernel?).

>
>
>>   I testet the recent
>> FreeBSD image, too. It achieves 1.5 MB/s throughput in that test.
>
>
> Is FreeBSD stable? I saw some interesting pmap changes in FreeBSD which made
> me wonder.

I couldn´t do much with it because of missing software. But it has
been stable for my brief testing.

>
>
>> As for X, it works but sometimes the Pi reboots when I start the
>> server. It also crashed one time when exiting X.
>
>
> This is most likely USB  which still has issues that we're working on.
>
>
>> I am interested in the changes that were made between the 2 releases.
>
>
> Best watch source-changes for this.
>
>
>> I´m also interested in a list of open issues
>> (missing/incomplete/unstable things).
>
>
> http://wiki.netbsd.org/ports/evbarm/raspberry_pi has some information
>

This is not very detailed. Two things I´d like to know:

-There is no DMA for the SD card adapter. Is it only missing in the
driver or is there no support for the SOCs DMA chip?

-What is to be done for the Videocore chip? 2D accelleration for the
framebuffer driver? What about OpenGL functionality - it seems that on
Linux it doesn´t depend on Mesa like all the other stuff.


Regards,

Stephan

>
>> Thanks,
>>
>> Stephan
>
>
>
> Cheers,
> Nick