I seem to recall a nasty bug in the older broadcom driver that ignores the gro=off setting! I believe the latest driver should fix it.
On 23 May 2013 17:12, daryl herzmann <[email protected]> wrote: > On Thu, 23 May 2013, David Coulson wrote: > >> >> On 5/23/13 11:04 AM, daryl herzmann wrote: >>> Greetings, >>> >>> I have a LVS-NAT web cluster that seems to be nicely chugging along. My >>> LVS director has the following specs: >>> >>> - Dell OptiPlex 745 >>> - Intel(R) Pentium(R) D CPU 3.40GHz >>> - 4 GB Memory >>> - BCM5754 Gigabit Ethernet PCI Express (two ports) [gro is disabled!] >> I was told by RedHat the GRO issue is fixed in RHEL6.4 - Not had chance to >> test it yet. > > Thanks, it appears this is the relevant bug? > > https://bugzilla.redhat.com/show_bug.cgi?id=854066 > > I did a test of this: > > # ethtool -k eth1 > Features for eth1: > rx-checksumming: on > tx-checksumming: on > scatter-gather: on > tcp-segmentation-offload: on > udp-fragmentation-offload: off > generic-segmentation-offload: on > generic-receive-offload: on > large-receive-offload: off > rx-vlan-offload: on > tx-vlan-offload: on > ntuple-filters: off > receive-hashing: off > > and the problem did not appear to go away. The traffic through the > director was extremely sluggish, so I failed back to having 'gro off', > shrug... > > daryl > > _______________________________________________ > Please read the documentation before posting - it's available at: > http://www.linuxvirtualserver.org/ > > LinuxVirtualServer.org mailing list - [email protected] > Send requests to [email protected] > or go to http://lists.graemef.net/mailman/listinfo/lvs-users -- Regards, Malcolm Turnbull. Loadbalancer.org Ltd. Phone: +44 (0)870 443 8779 http://www.loadbalancer.org/ _______________________________________________ Please read the documentation before posting - it's available at: http://www.linuxvirtualserver.org/ LinuxVirtualServer.org mailing list - [email protected] Send requests to [email protected] or go to http://lists.graemef.net/mailman/listinfo/lvs-users
