Thanks for your response Chiradeep.
2013/4/19 Chiradeep Vittal <chiradeep.vit...@citrix.com> > Increasing cores won't get you much since the current VR (4.1) linux > 2.6.32 where the networking tends to be single-core only. Otherwise YMMV ! > Increasing memory also does not give you much -- the bottleneck is the > memory used to store conn track connections -- 512mB will get you about 1 > million connections. > > Hopefully with the new VR (4.2) we can try and squeeze multi-core > performance out of it. > > On 4/19/13 12:54 PM, "benoit lair" <kurushi4...@gmail.com> wrote: > > >Hello Chiradeep, > > > >So with a VR running on a x5550 hexacore with not enough noisy neighboors > >with a computing offering with 4 core, 4 gb ram, i can hope to run 20 > >vlans > >with a total troughput of 2 gb max with 10 ip load balanced (each onto 3 > >vms) for a total amount of 3k connections (max, avg at 500 connect/s) and > >a > >max bp of 200Mb/s (this bp is only for the lb ip) ? Or is it not enough > >(hoping it is not impossible) ? > > > > > >Thanks for your response. > > > >Regards, Benoit. > > > > > >2013/4/18 Chiradeep Vittal <chiradeep.vit...@citrix.com> > > > >> Really depends on > >> - your CPU configuration > >> - your hypervisor > >> - your physical network speed > >> - noisy neighbors around the VR / around the physical network > >> - how many ipsec vpns > >> - how many LB > >> - load on the LB > >> - number of connections > >> > >> If you just test the VR in isolation with a 512GB RAM/1core > >>configuration > >> you should be able to get > >> - 2 Gb/s forwarding / firewalling OR > >> - 4 to 5k conn/s on the LB > >> > >> You add the other factors and things can vary wildly > >> > >> > >> On 4/18/13 2:58 AM, "benoit lair" <kurushi4...@gmail.com> wrote: > >> > >> >Hello, > >> > > >> > > >> >Thanks for your response. > >> > > >> >However, do you know in production cases, what are the maximum > >>bandwidth i > >> >can manage with a vpc vr ? Are there limitations or any recommendations > >> >(sizing limit in order to avoid performance loss) concerning > >>provisionning > >> >of the vpc ? > >> > > >> > > >> >Thanks for your advices. > >> > > >> >Regards, Benoit. > >> > > >> >2013/4/17 benoit lair <kurushi4...@gmail.com> > >> > > >> >> Hello guys, > >> >> > >> >> > >> >> I'm testing an preproduction environment with cs4.0.0 onto centos > >>5.3. > >> >> > >> >> I'm testing a vpc environment. > >> >> > >> >> I'm asking why does the tier networks are limited to 200mb/s (network > >> >> offering DefaultIsolatedNetworkOfferingForVpcNetworksNoLB) ? > >> >> So in xencenter, if i look at the network tab of my vpc vr vm, i got > >>a > >> >>qos > >> >> of 25600 kbytes/sec. > >> >> > >> >> Is there a risk to create a different network offering with a 1000 > >>mb/s > >> >> qos limit ? no limit ? > >> >> > >> >> What if i want to recreate a multi tier environnment with a no limit > >>of > >> >> qos with a 500 mb/s troughput, a 1000mb/s troughput ? > >> >> > >> >> What do you think about vpc vr capabilities ? any deployment > >> >> recommendations ? > >> >> > >> >> > >> >> Thanks for any advice. > >> >> > >> >> Regards, Benoit Lair. > >> >> > >> >> > >> >> > >> >> > >> > >> > >
