Date: Mon, 5 Aug 2013 17:52:01 -0500 (CDT) From: Bryan Venteicher <bryanv@daemoninthecloset.org> To: Joel Dahl <joel@freebsd.org> Cc: current@freebsd.org Subject: Re: [CFT] VMware vmxnet3 ethernet driver Message-ID: <1174186801.993.1375743121722.JavaMail.root@daemoninthecloset.org> In-Reply-To: <20130805202039.GA18861@devbox.vnode.local> References: <1050637258.686.1375660230986.JavaMail.root@daemoninthecloset.org> <601099152.721.1375661537866.JavaMail.root@daemoninthecloset.org> <20130805202039.GA18861@devbox.vnode.local>
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----- Original Message -----
> I have ~100 FreeBSD 8/9 VMs in my vSphere 5.1 environment, all using the
> VMware tools package from VMware. Everything has been running great for
> years.
> (we skipped vSphere 5.0). Why should I use this vmxnet driver instead of the
> VMware tools driver or the emulated e1000?
>
They are out of tree and subject to rotting. I had to use the patches
at [1] to even get them to compile on 9.1 and -current. I don't think
VMware puts much engineering resources behind it; there was a compiler
warning of a silly bug like:
if (foo) ;
do_something();
vmxnet3 has modern features LRO, IPv6 checksum offloading, etc that
the emulated e1000 lacks. In my test setup, e1000 tops out at 30MB/sec
but vmxnet3 goes to 50MB/sec. I'd like to hear other's experiences.
[1] - http://ogris.de/vmware/
> --
> Joel
>
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