Date: Thu, 01 May 2014 17:35:22 -0600 From: Ian Lepore <ian@FreeBSD.org> To: Winston Smith <smith.winston.101@gmail.com> Cc: freebsd-arm <freebsd-arm@FreeBSD.org> Subject: Re: Beaglebone black network performance Message-ID: <1398987322.22079.138.camel@revolution.hippie.lan> In-Reply-To: <CADH-AwEvjRx%2B3XZZuGYeLWsGdsDQOTGxXzSpmrBHjufDrNC4yA@mail.gmail.com> References: <CAAcX-AFVwzGXxpYXzjq5j3Up0mj8nwg6H_rsdELjvjevfvoTyw@mail.gmail.com> <CADH-AwEvjRx%2B3XZZuGYeLWsGdsDQOTGxXzSpmrBHjufDrNC4yA@mail.gmail.com>
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On Thu, 2014-05-01 at 13:02 -0400, Winston Smith wrote: > On Thu, May 1, 2014 at 12:47 PM, =D6zkan KIRIK <ozkan.kirik@gmail.com> = wrote: > > Rasberry PI's network performance is about 6-7Mbit/s, and ping latenc= ies > > are about 10-20 milliseconds. I think it's too high. I used iperf for > > bandwidth testing. >=20 > The RPi's 10/100 ethernet controller is connected to the BCM2835 SoC > via it's USB controller, so the USB controller has to share it's > bandwidth between the peripherals. >=20 > The BBB also has a 10/100 ethernet, but it's directly supported by the > SoC, so the performance *should* be a little better, particularly when > there's other USB traffic. It's interesting that reports of the rpi network performance are all over the map. The performance is pretty bad for me, iperf says 17.5mbits/sec and pings are in the 7-10ms range (!). =20 I swap the network cable over to an imx53 board (a 10/100 ethernet in a 1ghz soc) and it gets 77 mbits/sec and 200us pings, for comparison. -- Ian
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