Re: [PATCH net-next 4/7] xdp: separate xdp_redirect tracepoint in error case

2017-08-29 Thread Alexei Starovoitov
On Tue, Aug 29, 2017 at 04:37:56PM +0200, Jesper Dangaard Brouer wrote: > There is a need to separate the xdp_redirect tracepoint into two > tracepoints, for separating the error case from the normal forward > case. > > Due to the extreme speeds XDP is operating at, loading a tracepoint > have a m

[PATCH net-next 4/7] xdp: separate xdp_redirect tracepoint in error case

2017-08-29 Thread Jesper Dangaard Brouer
There is a need to separate the xdp_redirect tracepoint into two tracepoints, for separating the error case from the normal forward case. Due to the extreme speeds XDP is operating at, loading a tracepoint have a measurable impact. Single core XDP REDIRECT (ethtool tuned rx-usecs 25) can do 13.7