Web lists-archives.com

Re: [Multiarch] armhf on arm64 is not working

Hi there,

On 08/29/2017 06:07 PM, Adam Cecile wrote:
> Could be an alternative indeed, but what about the speed compared to
> my quad-core i5 with qemu ?

I haven't actually tried that specific comparison, but form my
experience a Pi tends to be a tiny bit faster in pure CPU
performance than qemu on Intel. (But not much.) The RPi3 is
also a quad core, so that is similar. YMMV may vary depending
on the precise workload though.

That said:

 - It has only 1 GiB of RAM. That might be a problem.
 - It doesn't have as much cache as an Intel Core CPU, so if
   you have workloads that require a lot of memory access,
   that'll probably offset any small advantages in pure CPU
 - I/O is quite slow. If you compile large things my guess is
   that just because of I/O it'll take longer on the Pi than
   with qemu.

OTOH, it's cheap, so even if it's not the right thing in the
end you're not going to waste a ton of money. You could also
first buy just the board and power supply and only buy a case
and other accessories once you've verified that it's sufficient
for your use case.

Then again, there are also other ARM boards in a similar price
range out there, which might suit your use case better. But I
really am not an expert here, I've just played around with the
Pi a bit in the past...