Mandi! Marc Roos In chel di` si favelave... > Just a thought, what about marking connections with iptables and using > that mark with tc?
Surely, but many things have to be taken into account: a) doing traffic control mean disabling ALL network hardware optimizations (queue, offline checksumming, ...), and i don't know the impact on ceph. b) doing simple control (eg, traffic clamping on a interface) could add little overhead, but if complex setup are needed (multiqueue, traffic shaping by IP/port/...) i think that more overhead get added. c) again, doing simple control can be done on ingress easily, but if complex setup ar needed the ingress traffic must be routed to another interface (mostly, IFB interfaces) and proper egress shaping get done here. In ifbX interfaces, also, there's no netfilter. I'm using that stuffs on firewall, where performance on modern/decent hardware is not a trouble at al. So, no, i've no benchmark at all. ;) -- dott. Marco Gaiarin GNUPG Key ID: 240A3D66 Associazione ``La Nostra Famiglia'' http://www.lanostrafamiglia.it/ Polo FVG - Via della Bontà , 7 - 33078 - San Vito al Tagliamento (PN) marco.gaiarin(at)lanostrafamiglia.it t +39-0434-842711 f +39-0434-842797 Dona il 5 PER MILLE a LA NOSTRA FAMIGLIA! http://www.lanostrafamiglia.it/index.php/it/sostienici/5x1000 (cf 00307430132, categoria ONLUS oppure RICERCA SANITARIA) _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
