Date: Thu, 24 Jun 2021 11:14:56 UTC
On 24/06/2021 6:51 pm, Paul Zimmerman wrote: >> On 22/06/2021 10:37 pm, Denis Ovsienko wrote: >>> On Tue, 22 Jun 2021 08:24:02 +1000 >>> MJ <firstname.lastname@example.org> wrote: >>> >>>> [ 1] 0.00-30.19 sec 310 MBytes 86.0 Mbits/sec >>>> >>>> Now, I could run these very same tests off Devuan if you like? This >>>> may help disprove any network issues? Although, as I've stated, the >>>> Devuan version running on the RPI3 consistently gets up to 3 times >>>> this speed. >>> Thank you for clarifying the test results Matt. From the numbers it >>> indeed looks like the TCP throughput never reaches even 100Mb/s. Whilst >>> the root cause of this might be a driver issue, or a consequence of the >>> "early access" board USB implementation not working well in FreeBSD, it >>> would help to eliminate trivial explanations as well. >> Thank you too Denis for your guidance in testing this appliance. >> >> The following is also addressed to all those interested: >> >> Just as a follow up, I performed some tests this morning using the old Devuan SD Card and a > new NetBSD \ >> 9.2. >> >> The summary is: >> >> Devuan/Linux is hands down faster. NetBSD 9.2 is almost 50% faster than FreeBSD 13. >> While NetBSD's result is not stellar it's still better than the pitiful FreeBSD throughput. >> >> I will likely abandon using FreeBSD, but I should probably raise a bug report for this? I am not sure of \ >> the process for this or whether it's even wanted. That is, does FreeBSD care enough about little \ >> appliances like the Raspberry Pis to spend time fixing an obviously broken network driver/stack? > I think the performance difference you are seeing vs. NetBSD might be > because the FreeBSD USB driver for the RPI3 and below does not use > interrupts, so all the USB transfers are polled. The NetBSD USB driver > is borrowed from OpenBSD, which in turn is borrowed from the mainline > Linux driver, which does use interrupts. > > - Paul Thanks Paul. In that case it seems like a waste of time posting a bug report when the driver is designed that way and only a major re-design will fix it.