my PC ip 10.10.0.1 board ip 10.10.0.2 2015-02-15 14:57 GMT+08:00 liyaoshi <[email protected]>:
> Just as a reference on my test result > > I use usb gadget network and run iperf as benchtools > > # uname -a > Linux buildroot 3.14.33 #10 SMP PREEMPT Sun Feb 15 13:57:32 CST 2015 > armv7l GNU/Linux > # cat /proc/cpuinfo > processor : 0 > model name : ARMv7 Processor rev 2 (v7l) > BogoMIPS : 996.14 > Features : swp half thumb fastmult vfp edsp thumbee neon vfpv3 tls > vfpd32 > CPU implementer : 0x41 > CPU architecture: 7 > CPU variant : 0x3 > CPU part : 0xc08 > CPU revision : 2 > > Hardware : Generic AM33XX (Flattened Device Tree) > Revision : 0000 > Serial : 0000000000000000 > # > > # ./iperf -s > ------------------------------------------------------------ > Server listening on TCP port 5001 > TCP window size: 85.3 KByte (default) > ------------------------------------------------------------ > [ 4] local 10.10.0.2 port 5001 connected with 10.10.0.1 port 43133 > [ ID] Interval Transfer Bandwidth > [ 4] 0.0-20.3 sec 100 MBytes 41.3 Mbits/sec > > # ./iperf -c 10.10.0.1 -n 100M > ------------------------------------------------------------ > Client connecting to 10.10.0.1, TCP port 5001 > TCP window size: 43.8 KByte (default) > ------------------------------------------------------------ > [ 3] local 10.10.0.2 port 50819 connected with 10.10.0.1 port 5001 > [ ID] Interval Transfer Bandwidth > [ 3] 0.0- 7.0 sec 100 MBytes 120 Mbits/sec > > > > > > 2015-02-15 13:02 GMT+08:00 William Hermans <[email protected]>: > >> Just to let you all, and anyone else know my own findings . . . I setup a >> rootfs to load from an external USB hard drive( last year-ish ). I found >> that writes were as high as 20MB/s, but reads were around like the both of >> you seem to say. 10MB/s. So my own numbers seem to jibe with both of yours >> as well. At least for reads. >> >> Also as far as I know there was no DMA involved, *and* I could not say >> for sure which block size I used . . . maybe I posted that in an old post, >> but I do not remember. The methodology I used for testing was dd( /dev/zero >> to disk ) and time, together. So nothing fancy. >> >> On Sat, Feb 14, 2015 at 5:05 PM, Chris Morgan <[email protected]> wrote: >> >>> I can also confirm ~10MB/sec transfer rates with some testing I've >>> done. This was some time ago, maybe 6 months, and with Angstrom. >>> >>> Chris >>> >>> >>> On Sat, Feb 14, 2015 at 6:44 PM, Jeffrey Wilson <[email protected]> >>> wrote: >>> > I am having transfer rate issues as well. My post over on BeagleBone >>> group >>> > has gotten zero attention. >>> > https://groups.google.com/forum/#!topic/beaglebone/KxYwZewmRLY >>> > In my case, the BBB cannot handle the video throughput of my camera, >>> > meanwhile a Rpi can. >>> > Jeff >>> > >>> > >>> > On Monday, December 29, 2014 at 1:31:28 PM UTC-5, [email protected] >>> > wrote: >>> >> >>> >> Untill now, the maximum transfer rate I could achieve is ~11 MB/s. >>> I've >>> >> tried this with different kernels with and without DMA enabled. >>> >> >>> >> Could anyone get more than this? If so, how can I achieve that? >>> >> >>> >> Thank you! >>> >> >>> >> TC >>> > >>> > -- >>> > For more options, visit http://beagleboard.org/discuss >>> > --- >>> > You received this message because you are subscribed to the Google >>> Groups >>> > "BeagleBoard" group. >>> > To unsubscribe from this group and stop receiving emails from it, send >>> an >>> > email to [email protected]. >>> > For more options, visit https://groups.google.com/d/optout. >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "BeagleBoard" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> For more options, visit https://groups.google.com/d/optout. >>> >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to the Google Groups >> "BeagleBoard" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> For more options, visit https://groups.google.com/d/optout. >> > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
