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Re: [Xen-users] pfsense HVM network performance

On 09/06/10 00:39, Matej Zary wrote:

On Tue, 2010-06-08 at 17:45 -0500, Dustin Marquess wrote:
> Did you try recompiling the pfsense FreeBSD kernel using the XENHVM
> kernel config? That way you'll get get PV drivers for network & disk
> I/O, which should help a lot.
> -Dustin
> On Tue, Jun 8, 2010 at 3:30 PM, Jonathan Tripathy <jonnyt@xxxxxxxxxxx>
> wrote:
>ÂÂÂÂÂÂÂÂ Hi Everyone,
>ÂÂÂÂÂÂÂÂ Just to let everyone know of my experience of network speed on
>ÂÂÂÂÂÂÂÂ pfsense HVM.
>ÂÂÂÂÂÂÂÂ Initially, I started off by doing PCI passthrough for my WAN
>ÂÂÂÂÂÂÂÂ NIC, and used e1000 emulation for LAN. Speed was capping at
>ÂÂÂÂÂÂÂÂ 90Mbp/s.
>ÂÂÂÂÂÂÂÂ When both were set to e1000, speed was capping at 30Mbp/s
>ÂÂÂÂÂÂÂÂ When LAN was set to e1000 and WAN was set to default (rl8xxx),
>ÂÂÂÂÂÂÂÂ speed was capping at 71Mbp/s.
>ÂÂÂÂÂÂÂÂ I wish I could have stayed with the first option, however my
>ÂÂÂÂÂÂÂÂ link speed is only detected at 10Mbps unless I take the cable
>ÂÂÂÂÂÂÂÂ out and in 2 or 3 times.
>ÂÂÂÂÂÂÂÂ Any tips on the above? In some cases, to get the above speed,
>ÂÂÂÂÂÂÂÂ I had to enable "device polling" in pfsense
>ÂÂÂÂÂÂÂÂ _______________________________________________
>ÂÂÂÂÂÂÂÂ Xen-users mailing list
>ÂÂÂÂÂÂÂÂ Xen-users@xxxxxxxxxxxxxxxxxxx

Should be worth the effort - in my case, I got better throughput with
bridged virtual PV NIC than with PCI passed-thru physical NIC (668
mbit/s against 534 mbit/s!). Shoddy HW (Realtek PCI NICs etc, no IOMMU
on mobo), but the point - PV makes HUGE difference (compared with pure
HVM) so it's worth the hassle. :)

Not bad

But where do I find a howto on how to do this?

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