On Wed, 2017-03-08 at 12:11 -0700, Subash Abhinov Kasiviswanathan wrote: > On 2017-03-08 11:40, Eric Dumazet wrote: > > Well, this 'optimization' actually hurts when UDP sockets are not > > connected, since this adds an extra cache line miss per incoming > > packet. > > > > (DNS servers for example) > > Hi Eric > > Thanks for your comments. Would it be preferable to disable early demux > for the > servers with large unconnected workloads in that case?
Well, many servers handle both TCP and UDP. For TCP, there is no question about early demux, this is definitely a win. We probably should have one sysctl to enable TCP early demux, one for UDP early demux.
