On Thu, 2009-03-12 at 09:18 +0000, Malcolm Turnbull wrote: > When the active connections climb to 60,000 and throughput is about > 100MB+ we get a sudden and massive drop of in throughput...
That looks to me very much like an interrupt-handling issue. What architecture are your NICs using - PCI, PCIe etc etc? Are they on board using a common bus? I'd surmise that either they're on a common PCI bus which is saturated, or they're sharing an IRQ and just can't go any faster. Can you separate them (either in BIOS or driver)? You might want to look back at CPU affinity which was discussed recently, although you say this a Celery so that throws out SMP magic as a fix! Graeme _______________________________________________ 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
