samples/bpf: add use of need_wakeup flag in xdpsock
This commit adds using the need_wakeup flag to the xdpsock sample application. It is turned on by default as we think it is a feature that seems to always produce a performance benefit, if the application has been written taking advantage of it. It can be turned off in the sample app by using the '-m' command line option. The txpush and l2fwd sub applications have also been updated to support poll() with multiple sockets. Signed-off-by: Magnus Karlsson <magnus.karlsson@intel.com> Acked-by: Jonathan Lemon <jonathan.lemon@gmail.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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