From mboxrd@z Thu Jan  1 00:00:00 1970
From: Steve Simon <steve@quintile.net>
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Date: Thu,  5 Apr 2018 18:02:17 +0100
Message-Id: <BA4D9781-54BA-43C0-AA71-6DC047739727@quintile.net>
References: <46180584f55326f1df30061986ba28cf@hamnavoe.com>
In-Reply-To: <46180584f55326f1df30061986ba28cf@hamnavoe.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] Plan9 on Pi 3B+
Topicbox-Message-UUID: d3aa44d8-ead9-11e9-9d60-3106f5b1d025


hi,

great work richard, i hope to try this soon. the network performance is the b=
iggest draw for me.

do you any feeling why plan9 sees only 200Mbps ether?

is it the stack design, how plan9 accesses the hardware? or maybe the 300Mbp=
s quoted is only when using jumbo frames?

-Steve


On 5 Apr 2018, at 16:03, Richard Miller <9fans@hamnavoe.com> wrote:

>> Running Linux, 3B+ seems perceptibly faster than 3B.
>=20
> 1400Mhz vs 1200Mhz might be perceptible, and the improved
> heat management will help if your CPU frequency was being
> temperature-throttled.
>=20
> Ethernet bandwidth for the 3B+ on linux is claimed to be
> about 300Mbit/s.  With Plan 9, I'm seeing a limit of
> just over 200Mbit/s.  Not gigabit, but still it's a 2x
> improvement over earlier models.
>=20
> Note: you need to use Cat 6 cable to get more than 100MB/s
> speed.  I discovered this the hard way.  The orange LED
> on the RJ45 socket goes on if the link is in gigabit mode.
>=20