> -----Original Message----- > From: [email protected] [mailto:lvs-users- > [email protected]] On Behalf Of Neal B > Sent: Monday, August 09, 2010 2:38 PM > To: LinuxVirtualServer.org users mailing list. > Subject: Re: [lvs-users] Kernel Tuning for LVS > > You mention the NIC changes as well as a good nic. In your research how > much more performance did the ring buffer change and interrupt change > have? > > Any suggestions on what you use to load test your new configurations? >
The move to e1000 was abolutely huge. Huge. Like 2x performance gain compared to onboard Dell Broadcoms. The InterruptThrottleRate is VERY good if you find yourself with high "softirq" CPU usage. The ring buffer change is newer, and I don't have as many metrics on it, but it seems to be more of a "oh crap, don't drop packets even though you're very busy" change moreso than a direct performance impact. Jason Faulkner Linux Engineer, Rackspace Email & Apps [email protected] _______________________________________________ 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
