Date: Thu, 24 Jun 2021 15:39:14 +0100 From: Steve O'Hara-Smith <steve@sohara.org> To: Denis Ovsienko <denis@ovsienko.info> Cc: Paul Zimmerman <pauldzim@gmail.com>, MJ <mafsys1234@gmail.com>, Mark Millard via freebsd-arm <freebsd-arm@freebsd.org> Subject: Re: Raspberry Pi 3B+ and pitiful network speeds Message-ID: <20210624153914.ea32408c50347ad2b390c99b@sohara.org> In-Reply-To: <20210624104331.3f21429d@basepc> References: <CADBGO7--z6_pHxjhW_P7aCF1q8QJhN8v=Dn%2BCVbcXDjzr-S=jA@mail.gmail.com> <20210624104331.3f21429d@basepc>
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On Thu, 24 Jun 2021 10:43:31 +0100 Denis Ovsienko <denis@ovsienko.info> wrote: > On Thu, 24 Jun 2021 01:51:39 -0700 > Paul Zimmerman <pauldzim@gmail.com> wrote: > > > 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. Hmm what is the poll frequency ? Would it help to increase it ? -- Steve O'Hara-Smith <steve@sohara.org>
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