Date: Fri, 18 Dec 2015 08:34:52 -0800 From: Luigi Rizzo <rizzo@iet.unipi.it> To: Pradosh Datta <pradosh.datta@gmail.com> Cc: "freebsd-net@freebsd.org" <net@freebsd.org> Subject: Re: Netmap with VMWare Message-ID: <CA%2BhQ2%2BjJE9rPyoYU5yC2jYFHqV=G6ALfB7WA8Q-0nYtbE50WuA@mail.gmail.com> In-Reply-To: <CAB%2ByOrFRpBYXHmewG5BPvpHnCFLzU9-AZM-NHf0EV4tQnKDY0g@mail.gmail.com> References: <CAB%2ByOrFRpBYXHmewG5BPvpHnCFLzU9-AZM-NHf0EV4tQnKDY0g@mail.gmail.com>
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On Fri, Dec 18, 2015 at 5:14 AM, Pradosh Datta <pradosh.datta@gmail.com> wrote: > Hi, > I am trying to use the netmap on vmware in CentOS guests, I am able to use > netmap with the e1000 driver on vmware (though the throughput is close to > line speed). > > But is there any way to use the netmap with vmxnet3? Is there any patch > available to support that? Or any suggestion on how can I achieve > high-packet-rate between vm-to-vm using netmap? The vm-to-vm bottleneck is typically in the hypervisor (vmware) and the switch (in this case it may be the linux bridge in centos). I am afraid just using netmap in the guest won't help you much in this respect. See our ANCS'13 paper http://info.iet.unipi.it/~luigi/papers/20130903-rizzo-ancs.pdf for what you can expect (look at the unmodified hypervisor/linux bridge case). This said, you can always use netmap (in emulated mode) on any network interface in the guest. cheers luigi > > Best Regards, > Pradosh > _______________________________________________ > freebsd-net@freebsd.org mailing list > https://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" -- -----------------------------------------+------------------------------- Prof. Luigi RIZZO, rizzo@iet.unipi.it . Dip. di Ing. dell'Informazione http://www.iet.unipi.it/~luigi/ . Universita` di Pisa TEL +39-050-2217533 . via Diotisalvi 2 Mobile +39-338-6809875 . 56122 PISA (Italy) -----------------------------------------+-------------------------------
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