29 Apr
2015
29 Apr
'15
9:29 a.m.
Am 28.04.2015 um 22:15 schrieb Jim Dummett via DCPomatic:
Big Buck Bunny trailer took 5m04s (2.71fps).
Carl, I've emailed you the log file etc so it can be added to the benchmarks.
Would be very interested to hear how the Raspberry Pi compares! And Carsten, do you think
I should be getting better performance? It's running 4 threads (processor has 2 cores
hyper-threaded) & DCP-o-matic is pretty much maxing out the CPU.
Ah, no, sorry. You could try setting thread# to 5 or 6, but with that CPU it will probably
not change too much.
When I browse through my extensive benchmark list, it is sometimes chilling to see how
little actually Intel CPUs have improved over the last years.
I can break down performance to the individual core and hwthread, and at that point,
they're all more or less the same and only scale with clock.
But at least DCP-o-matic will use more cores/machines very effectively.
But to get somewhere, one should start with a decent number. Yes, compared to your Retina,
it may be alluring to shell out 160US$ to get 4fps (if that number holds true). The
problem is that from there adding another 40US$ will gain very little, and the benefit
get's smaller and smaller. So at some point there is little incentive to add just one
PI to get a 10% improvement.
Maybe one can get a dealer to supply a dozen or so PI 2 B for a test. As they need little
to run (SD card, power supply, network cable), this should be rather easy to set up. If a
set of ten scales well enough, it get's interesting.
- Carsten