sorry, should say "mausezahn". It's a part of Netsniff http://netsniff-ng.org/
On Fri, Aug 24, 2018, 5:15 PM Josh Knight <[email protected]> wrote: > Just guessing here, if the switch doesn't support rr on its port channels, > then using separate VLANs instead of bundles on the switch is essentially > wiring nodeA to nodeB. That way you don't hit the port channel hashing on > the switch and you keep the rr as-is from A to B. > > I would also try using UDP mode on iperf to see if it's TCP retransmission > that's preventing you from getting closer to 4Gbps. Another useful tool is > maisezahn for traffic generation, though it is more complex to run. > > > On Fri, Aug 24, 2018, 4:59 PM Gilberto Nunes <[email protected]> > wrote: > >> I can get 3 gbps. At least 1.3 gbps. >> Don't know why! >> Em 24/08/2018 17:36, "mj" <[email protected]> escreveu: >> >> > Hi Mark, >> > >> > On 08/24/2018 06:20 PM, Mark Adams wrote: >> > >> >> also, balance-rr through a switch requires each nic to be on a seperate >> >> vlan. You probably need to remove your lacp config also but this >> depends >> >> on >> >> switch model and configuration. so safest idea is remove it. >> >> >> > >> > <snip> >> > >> > then I belive your iperf test will return ~3Gbps... i seem to remember >> >> performance doesnt get much better than this but I cant remember why. >> >> >> >> Also can't say if this is a good setup for ceph performance.. >> >> >> > >> > This is really interesting info, i did not know this. Someone has tried >> > this with ceph? Any experiences to share..? >> > >> > Strange that performence turns out to be ~3Gbps, instead of the expected >> > 4... >> > >> > Anyone with more information on this subject? >> > >> > Have a nice weekend all! >> > >> > MJ >> > _______________________________________________ >> > pve-user mailing list >> > [email protected] >> > https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user >> > >> _______________________________________________ >> pve-user mailing list >> [email protected] >> https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user >> > _______________________________________________ pve-user mailing list [email protected] https://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
