On Thu, Mar 24, 2016 at 10:55 AM, Daniel Borkmann <dan...@iogearbox.net> wrote: > On 03/24/2016 06:26 PM, Tom Herbert wrote: >> >> I completely agree with this, but I wonder if we now need a repository >> of useful BPF modules. So in the case of implementing functionality >> like in SO_REUSEPORT_LISTEN_OFF that might just become a common BPF >> program we could direct people to use. > > > Good point. There's tools/testing/selftests/net/ containing already > reuseport > BPF example, maybe it could be extended.
I would appreciate a conceptual description on how this would work especially for a common scenario as described by Willy. My initial impression was that a coordinator (master) process takes this responsibility to adjust BPF filters as children come and go. Two popular software has similar use cases: nginx and haproxy. Another concern is with the introduction of BPF itself, should we expect a performance drop in these applications? Best Regards, Tolga Ceylan
