Date: Fri, 7 Aug 2015 10:02:35 +0100 From: "seanrees@gmail.com" <seanrees@gmail.com> To: Egoitz Aurrekoetxea <egoitz@sarenet.es> Cc: Karl Pielorz <kpielorz_lst@tdx.co.uk>, "freebsd-xen@freebsd.org" <xen@freebsd.org> Subject: Re: Poor network performance with Xen + OpenVPN? Message-ID: <CAJGy1F09cn2NSJgub3M%2BVfXi_b4O5GTtLB1xWV5g1LF1f=46uA@mail.gmail.com> In-Reply-To: <CECD3423-DA5C-4CA2-B509-0EC2A769C7D2@sarenet.es> References: <B314E8002A8A1A7A537DB661@Karls-Mac-mini.local> <40E060AB-F0B9-48F3-9309-947CAB5C1939@sarenet.es> <5A7F36D35FF28CD4B9D2DE92@10.12.30.106> <CAJGy1F0GVZDuidpJ2CnL_uo_yjhNZJswUkafvbAg6E1wzFYeCA@mail.gmail.com> <CECD3423-DA5C-4CA2-B509-0EC2A769C7D2@sarenet.es>
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I've not tried running OpenVPN against itself in a test bed. I no longer have the option as I had my provider downgrade my problematic VM from 4.4 to 3.4, which made the problem disappear. The OpenVPN config's I use are pretty standard. Server: port XXYYZ dev tun ca CA cert CERT key KEY dh DH server A.B.C.D 255.255.255.0 ifconfig-pool-persist ipp.txt keepalive 2 8 comp-lzo user nobody group nobody persist-key persist-tun status openvpn-status.log verb 3 push "dhcp-option DNS 8.8.8.8" push "dhcp-option DNS 8.8.4.4" Client: client dev tun proto udp remote A XXYYZ remote B XXYYZ resolv-retry infinite nobind user nobody group nobody persist-key persist-tun ca CA cert CERT key KEY ns-cert-type server verb 3 ping 2 ping-restart 5 On Sat, Aug 1, 2015 at 12:45 PM, Egoitz Aurrekoetxea <egoitz@sarenet.es> wrote: > Could you paste your onpenvpn=E2=80=99s server and client config files?. = Which OS > the client runs? > > Have you tested this openvpn connectivity without any network devices > between them?. With for example an ip in the > loopback interface of the openvpn server? > > Best regards, > > > [image: sarenet] > *Egoitz Aurrekoetxea* > Departamento de sistemas > 944 209 470 > Parque Tecnol=C3=B3gico. Edificio 103 > 48170 Zamudio (Bizkaia) > egoitz@sarenet.es > www.sarenet.es > > Antes de imprimir este correo electr=C3=B3nico piense si es necesario hac= erlo. > > El 30/7/2015, a las 11:41, seanrees@gmail.com escribi=C3=B3: > > I have the same issue. I managed to track it down to a difference between > somewhere between Xen 3.4 and 4.4 (my provider uses both). > > 3.4 works fine (I can sustain a few mbps through OpenVPN). 4.4 I get > ~0.05mbps max. I wasn't able to track it down. > > Both with the virtual drivers (if_xn) with all combinations of tso, lro, > rxcsum and txcsum on/off tested. > > Sean > > On Wed, Jul 29, 2015 at 2:58 PM, Karl Pielorz <kpielorz_lst@tdx.co.uk> > wrote: > >> >> >> --On 29 July 2015 14:28 +0200 Egoitz Aurrekoetxea <egoitz@sarenet.es> >> wrote: >> >> Hi! >>> >>> Have you disabled tso, lro and friends?. >>> >>> >> If by that you mean, >> >> ifconfig xn0 -rxcsum -txcsum -tso4 -lro >> >> Yes - I've tried that on the virtual host running OpenVPN, it didn't see= m >> to make any difference :( >> >> I'll hopefully get some more time later to look at it again. >> >> Regards, >> >> -Karl >> _______________________________________________ >> freebsd-xen@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-xen >> To unsubscribe, send any mail to "freebsd-xen-unsubscribe@freebsd.org" >> > > >
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