Did you use same driver version with the differents kernel version ? Maybe try to desactive tso,gso,... with ethtool ? ----- Mail original ----- De: "Stefan Priebe - Profihost AG" <s.priebe@xxxxxxxxxxxx> À: "Alexandre DERUMIER" <aderumier@xxxxxxxxx> Cc: ceph-devel@xxxxxxxxxxxxxxx Envoyé: Lundi 18 Juin 2012 11:11:16 Objet: Re: stable 10GBE under 3.4.2 or 3.5.0-rc2 Am 18.06.2012 10:11, schrieb Alexandre DERUMIER: > maybe try to play with net.ipv4.tcp_congestion_control ? The default on my machines and even under RHEL6 is cubic. But i've now alos tried, reno, bic and highspeed. But it doesn't change anything. Everything is fine under 3.0.32 and pretty bad under 3.4.X or 3.5rc2. Stefan -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
