Linked by Howard Fosdick on Sat 24th Nov 2012 04:12 UTC
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RE[7]: RPi is still open-source hostile.
by Neolander on Wed 28th Nov 2012 06:38
in reply to "RE[6]: RPi is still open-source hostile."
PS. ( WRT http://www.osnews.com/permalink?543124 ) and with USB, CPU hardly idles when reading - USB is more CPU-intensive; maybe USB2.0-only is not such a bad thing on meagre CPUs.
AFAIK, it is only USB 3 that introduced proper use of CPU interrupts for signalling, while previous releases required constant polling by the OS. Combining that with the larger packet size, a USB 3 stack might actually end up going easier those low-performance chips.
At least if OSs and devices supported it well, which, considering how well Linux 3.2 can react on dmesg and elsewhere when I plug something into my USB 3 ports, is far from a given.
Edited 2012-11-28 06:48 UTC




Member since:
2005-07-06
Though "terribly slow" probably goes too far? Maybe "slowish" ...and OTOH quite enough for many other usages - reasonably comparable to 100 MBit Ethernet, when the little board is used to serving something over it.
PS. ( WRT http://www.osnews.com/permalink?543124 ) and with USB, CPU hardly idles when reading - USB is more CPU-intensive; maybe USB2.0-only is not such a bad thing on meagre CPUs.
Edited 2012-11-27 10:17 UTC