Date: Wed, 19 Nov 2014 07:16:37 +0100 From: Jan Bramkamp <crest@rlwinm.de> To: freebsd-ipfw@freebsd.org Subject: Re: FreeBSD max pipe size? Message-ID: <546C35C5.8010702@rlwinm.de> In-Reply-To: <CAHu1Y73dSKR6_mTfKhjRQ88yC0KfA-Zo9WKdRV=uJ5Azyd8FxQ@mail.gmail.com> References: <543C4825.6030901@nyi.net> <CAHu1Y73dSKR6_mTfKhjRQ88yC0KfA-Zo9WKdRV=uJ5Azyd8FxQ@mail.gmail.com>
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On 14.10.2014 00:13, Michael Sierchio wrote: > On Mon, Oct 13, 2014 at 2:46 PM, Jack Barber <jack@nyi.net> wrote: > >> I am trying to set up dummynet with FreeBSD 9.3 and a 10 GB Fibre over >> ethernet NIC (ix drivers). >> >> Dummynet appears to have a limit of 1.25 gigabits a second, and when I >> start setting extremely large pipe values I start running into: IIRC dummynet stores the pipe bandwidth in bits per seconds in a 32 bit integer. This limits dummynet to ca. 4.2Gb/s. I don't know if this representation is exported as part of a KBI. If it is changing it to a 64 bit integer would break the KBI and will probably require someone to push for the change in 11-CURRENT and a set of compatible APIs for 10-STABLE and maybe even 9-STABLE.
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