Date: Fri, 17 Jan 2014 13:03:36 -0800 From: Kevin Oberman <rkoberman@gmail.com> To: Mike Tancsa <mike@sentex.net> Cc: FreeBSD-STABLE Mailing List <freebsd-stable@freebsd.org> Subject: Re: forwarding performance with releng7 vs 8 vs 9 vs 10 on an Alix box Message-ID: <CAN6yY1uUW9HbiU=UmS_4Cq1i77AadxBwBzSGQ1LprypSsi6u5w@mail.gmail.com> In-Reply-To: <52D98A83.90805@sentex.net> References: <52D98A83.90805@sentex.net>
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On Fri, Jan 17, 2014 at 11:54 AM, Mike Tancsa <mike@sentex.net> wrote: > We have a couple of sites where we found it was possible to live lock / > crash an alix box if there were too many pps flowing across the unit in > RELENG_8. The same device with releng_7 did not show the same > behaviour. As these boxes are remote and the watchdog would kick in, I > was not able to debug things very much. Even back in the lab, it wasnt > always easy to trigger the crash synthetically, but I could. > > Has anyone done any network performance comparisons between the various > branches for speed and stability for single core embedded platforms like > the ALIX or Soekris ? > > ---Mike > FreeBSD 8 introduced default support for TSO. You might try turning it off (-tso) if it is enabled on the interfaces involved. -- R. Kevin Oberman, Network Engineer, Retired E-mail: rkoberman@gmail.com
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