Re: Raspberry Pi 4B performance compared to APU / wireless networking?

2021-12-06 Thread Mark Kettenis
> The APU itself doesn't have wlan so that depends on what card you use
> of course. bwfm(4) does work well though the antenna is a resonant cavity
> etched on the PCB and there's no way to move it outside of the case.
> If you want to run a high performance AP you'll still want a separate
> device.

The CM4 has a connector for an external antenna (but only one).  Not
sure how well bwfm(4) works as an AP though.

Note that CM4 PCIe support only works in -current.



Re: Raspberry Pi 4B performance compared to APU / wireless networking?

2021-11-30 Thread Steve Williams

On 30/11/2021 12:38 a.m., Stuart Henderson wrote:

On 2021-11-30, Steve Williams  wrote:

Hi,

I have an APU 2C4 running OpenBSD 7.

I see that the Raspberry Pi 4B is supported by OpenBSD now and I was
thinking of getting one to play with as my APU is my main server and I
don't want to take it down to experiment.

I can't seem to find any reviews/comparisons of an APU vs. a Raspberry
Pi 4B.

Does anyone have a "gut" feeling on the relative performance?

Network performance and compiling are way better on the rpi4. Disk io on
OpenBSD can be way better on the APU (we don't support UAS so the faster
USB SSDs don't reach the performance they are capable of). Though there
are some Pi CM4 carrier board which support PCIe-based storage which
should be better than the APU.


Does the wireless networking work well on the Raspberry as the APU's
wireless is less than optimal :) ?

The APU itself doesn't have wlan so that depends on what card you use
of course. bwfm(4) does work well though the antenna is a resonant cavity
etched on the PCB and there's no way to move it outside of the case.
If you want to run a high performance AP you'll still want a separate
device.



Hi Stuart,

Thanks very much for the information!  I'm surprised the Pi will compile 
faster, outside of IO issues.


And the WLAN on the Pi with no antenna?  that sounds a bit weak... I was 
looking at getting an aluminum case that acts as a passive heatsink, but 
my gut feeling is that would be contra-indicated for good wifi... I'll 
follow up with the manufacturer to see what their feedback is.


Thanks again!

Cheers,
Steve W.



Re: Raspberry Pi 4B performance compared to APU / wireless networking?

2021-11-30 Thread Stuart Henderson
On 2021-11-30, Steve Williams  wrote:
> Hi,
>
> I have an APU 2C4 running OpenBSD 7.
>
> I see that the Raspberry Pi 4B is supported by OpenBSD now and I was 
> thinking of getting one to play with as my APU is my main server and I 
> don't want to take it down to experiment.
>
> I can't seem to find any reviews/comparisons of an APU vs. a Raspberry 
> Pi 4B.
>
> Does anyone have a "gut" feeling on the relative performance?

Network performance and compiling are way better on the rpi4. Disk io on
OpenBSD can be way better on the APU (we don't support UAS so the faster
USB SSDs don't reach the performance they are capable of). Though there
are some Pi CM4 carrier board which support PCIe-based storage which
should be better than the APU.

> Does the wireless networking work well on the Raspberry as the APU's 
> wireless is less than optimal :) ?

The APU itself doesn't have wlan so that depends on what card you use
of course. bwfm(4) does work well though the antenna is a resonant cavity
etched on the PCB and there's no way to move it outside of the case.
If you want to run a high performance AP you'll still want a separate
device.




Raspberry Pi 4B performance compared to APU / wireless networking?

2021-11-29 Thread Steve Williams

Hi,

I have an APU 2C4 running OpenBSD 7.

I see that the Raspberry Pi 4B is supported by OpenBSD now and I was 
thinking of getting one to play with as my APU is my main server and I 
don't want to take it down to experiment.


I can't seem to find any reviews/comparisons of an APU vs. a Raspberry 
Pi 4B.


Does anyone have a "gut" feeling on the relative performance?

Does the wireless networking work well on the Raspberry as the APU's 
wireless is less than optimal :) ?


Thanks for any feedback.

Cheers,
Steve Williams