I suspect that Raspbian enables armhf floating point by default, while Ã…ngstrÃ¶m needs to be told to use it.Īlso, -march=native only reduced execution time by mere seconds and has a negligible impact.ĬOLLECT_LTO_WRAPPER=/usr/lib/gcc/arm-linux-gnueabihf/4.8/lto-wrapperĬonfigured with. Update: I’ve tried with an external power supply, and checked that the processor was running at full speed. HardwareÂ Â Â : Generic AM33XX (Flattened Device Tree) Model nameÂ Â Â : ARMv7 Processor rev 2 (v7l)įeaturesÂ Â Â : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls

Linux beaglebone 3.8.13 #1 SMP Tue Jun 18 02:11: armv7l GNU/Linux RevisionÂ Â Â : 000f BeagleBone Black: system info # uname -a ProcessorÂ Â Â : ARMv6-compatible processor rev 7 (v6l)įeaturesÂ Â Â : swp half thumb fastmult vfp edsp java tls It’s almost as if the compiler isn’t fully optimizing under Ã…ngstrÃ¶m Linux. I don’t have any explanation why the BBB is so much slower. (In comparison, my i7 quad-core laptop runs it in 8Â½ seconds.) I compiled it on both machines with: g++Â -OfastÂ Â card.cppÂ Â -o cardĪnd then ran it with: time. But I need to see if this thing has any grunt, and so I need a benchmark.Īfter hearing about the business-card raytracer, I thought it would be perfect. And BoneScript â€” an Arduino-like JavaScript library â€” is very clever indeed. Props to the CircuitCo folks, they are easy to set up: just a mini-USB cable provides power and virtual network shell. So I buy one at the exceptionally soggy Toronto Mini Maker Faire.

One hearsÂ that the BeagleBone Black is screamingly fast compared to the Raspberry Pi faster, newer processor, blahdeblah, mcbtyc, etc.

All benchmarks are artificial, but this one had me scratching my head.

Panda pau06 on a beaglebone